Hair loss treatment

What is hair loss treatment?

A hair transplant moves hair roots taken from an area relatively spared by loss into a thinned area. The operation does not produce new hair; it redistributes the hair that is already there. That distinction holds throughout this article and sets the limit of what can be expected.

Where the intervals on this page come from: The box above summarises general information drawn from institutional patient guidance and clinical guidelines; it is not a schedule approved by the physician responsible for this website for their own practice. The intervals given by different institutions are identified below by name. The ranges in the box are not individual clearance to resume activities or a guarantee of results.

Treating hair loss does not consist of surgery alone. Medical treatment, platelet-rich plasma (PRP) and other non-invasive approaches are taken up at the appropriate points in this article; their detail will be written separately in the non-surgical procedures section.

Before surgery comes into question, the cause of the loss has to be answered. Not every hair loss is treated by transplantation, and in some types of loss a transplant is not appropriate.¹²

Who is it suitable for?

A hair transplant is a procedure defined for people whose loss follows a particular pattern and whose donor area is sufficient. The decision is made according to the diagnosis, the state of the donor area, the course of the loss and the expectation.¹

Age is not a criterion on its own, but it matters. A practice guideline does not recommend hair transplantation below the age of 21 and prefers waiting until 23 to 25, assessing the person with medical treatment in the meantime; that recommendation is given as level 4 evidence and grade D.³ The same guideline describes the situations in which earlier surgery may be considered between 21 and 23, together with the nature of the loss and thorough counselling.³ The reason for waiting at a young age is that how far the loss will progress is not yet clear.

Not having surgery is also an option. A transplant does not halt ongoing loss; the transplanted hairs remain while the person's own surrounding hair can continue to be lost.¹⁴

In which types of hair loss is a transplant unsuitable or postponed?

Diffuse and temporary loss: Where diffuse shedding appears after childbirth, serious illness, surgery or marked stress (telogen effluvium), the cause has to be investigated first; this picture can resolve on its own and is not taken as a direct reason for transplantation.²⁵

Alopecia areata: In this condition, in which the immune system targets the hair roots, transplantation is not considered appropriate while the disease is active; the disease can affect the transplanted roots as well.¹²

Scarring (cicatricial) alopecia: Findings such as redness, loss of the follicular openings and scarring call for further assessment. A transplant carried out while the disease is active can make it worse.¹

Systemic and other causes: Thyroid disease, nutritional deficiency, medicines being taken and conditions of the scalp are assessed.⁶² The same blood tests or supplements are not advised for everyone; which tests are requested is determined by the history and the examination.⁶

Rapidly progressing and unsettled loss: Planning carried out before the speed and direction of the loss are clear can leave a result that does not look natural a few years later. Treatment and observation are advised first in that situation.¹³

This section is not for readers to diagnose themselves. Distinguishing between the pictures listed is done by examination and, where needed, by trichoscopy and biopsy.¹⁶

How does assessment differ in women?

In female-pattern hair loss, widening at the parting and thinning over the crown can be seen; the same distribution as the frontal and crown pattern of male-type loss is not expected.⁵⁷

In women for whom a transplant is considered, ruling out chronic telogen effluvium, alopecia areata and active scarring disease, and assessing the density of the donor area and the thinning of the hairs (miniaturisation), come to the fore.⁵¹ Where thinning affects the whole scalp, a usable donor area may not exist.⁷

Being a woman does not on its own rule out a transplant. On the other hand, female sex and female-pattern loss are among the reported risk factors for temporary shedding of the existing hairs around the transplant (shock loss).⁸

What is assessed at the examination?

The examination covers when the loss began, how fast it is progressing, the family history, treatments applied previously and medicines being taken. The whole scalp is examined; not only the bare area but the donor area as well.¹³

Measuring the density of the donor area and whether the hairs there show thinning is decisive. Where the donor area is also affected by the loss, the plan changes.¹ Trichoscopy is examination of the scalp under magnification and is used in the differential diagnosis; where it is considered necessary, selected tests and a biopsy are requested.⁶

Discussing the expectation is part of the examination. Dissatisfaction in the early period is most often related to unrealistic expectations, the perception of density or temporary shedding.⁸

How is the operation planned?

The procedure is carried out under local anaesthesia. The National Health Service (NHS) describes a framework in which local anaesthetic and sedation are used together and the person is awake but feels no pain; Cleveland Clinic likewise describes a procedure in which the scalp is numbed and the person mostly stays awake.⁴⁹

The two institutions put the duration differently. The NHS states that the procedure usually takes 1 day, while Cleveland Clinic states that it can take several hours.⁴⁹ The "1 day" in the box does not mean that surgery continues without interruption for a day.

Discharge is on the same day. The NHS states that an overnight stay is not needed, and Cleveland Clinic that the procedure is carried out as an outpatient and the person can go home the same day.⁴⁹

Why is the donor area limited?

The roots used in a transplant are taken from an area relatively spared by loss. A guideline gives a range of 189 to 203 square centimetres for this safe donor area and recommends that harvesting stay within it. The same text also states that this range depends on individual and ethnic variation and that there is no single safe area valid for all people.³

Overusing the donor area leaves a permanent result. A review describes overharvesting as visible thinning, a moth-eaten appearance and permanent donor depletion, and lists repeated sessions, low baseline density and inadequate assessment among the risk factors.⁸

The guideline recommends that donor areas outside the scalp also be assessed, in order to avoid overusing the scalp donor area.³ In people carrying a risk of abnormal scarring, where harvesting from the beard or body is being considered, assessing the healing response first with a limited test harvest is advised.⁸

How do FUE and the FUT/strip method differ?

Both are ways of taking the graft; that is where the difference lies.

FUT (the strip method): A strip of skin is taken from the donor area, the hair roots are separated from that strip, and the area is closed with sutures. A single linear scar remains.¹⁰⁴ According to the NHS, sutures that need removal can be taken out after 10 to 14 days; that information concerns closure in the strip method only.⁴

FUE (follicular unit excision): The hair roots are removed one by one with small round punches. Many small round scars remain; these can show with a short haircut.¹⁰⁴ There are no sutures needing removal with this method.

There is no "incision-free" or "scar-free" method. Both leave scars; what differs is the form of the scar.¹⁰

Is DHI a separate hair transplant method?

It is not. The International Society of Hair Restoration Surgery (ISHRS) explains that the name DHI is used by some practitioners for implanting a follicular unit immediately after it is extracted, or for the sharp implantation technique, and states that in either case DHI is not a hair transplant method and should not be marketed as such.¹⁰

The distinction runs as follows. First comes how the root is taken (FUE or FUT), then how it is placed. Trade names given to a way of placing grafts do not form a separate class of method.

How are the hairline, the number of grafts and the density planned?

The hairline is determined by considering the present bare area, the quality of the hair, the donor resource available and the loss expected in future together.¹³ A line that looks natural today can be left standing alone as the loss progresses.

The ranges given in the guideline for numbers are as follows. The single-session recommendation aimed at avoiding visible donor depletion is 2,500 to 3,000 grafts, and the framework given for different sessions and methods over a lifetime is 4,000 to 6,500 scalp grafts; that recommendation is given as level 3 evidence and grade D.³ In a donor area with a baseline density of 65 to 75 follicles per square centimetre, 10 to 15 excisions per square centimetre in a single pass is advised; level 3 evidence, grade C.³ A review also advises limiting harvesting density to between 10 and 20 per cent per session in order to avoid overharvesting.⁸

These figures are not a capacity calculated for an individual, and a higher number of grafts does not mean a better result. The number of grafts, the number of hairs and the density per unit area are different measures; one graft can carry more than one hair.³

Where does medical treatment sit in relation to a transplant?

Medical treatment and transplantation do not do the same job. Medical treatment is considered for preserving the existing hair and following the course of the loss, while a transplant moves roots into an area where hair has been lost.¹⁶

In young people and in unsettled loss, medical treatment and observation are advised first.³¹ For the period after surgery, a placebo-controlled study covering 79 men reported a benefit in terms of the existing hair around the transplant.¹¹ That finding cannot be generalised to graft survival, to women or to all medicines.

No drug name, dose, schedule for starting and stopping, or list of side effects is given on this page; these will be taken up separately in the non-surgical procedures section. No precondition making medication compulsory before a transplant was found in the sources.

What is PRP considered for alongside a transplant?

PRP is the application to the scalp of plasma prepared from a person's own blood and enriched in platelets.⁶ Where it is used alongside a transplant, outcomes such as graft survival, earlier onset of growth and density have been examined.

The state of the evidence is as follows. A systematic review covering 3 studies and 217 people in total reports results in a favourable direction, but states that a meta-analysis could not be performed because of the studies' differing measures and follow-up periods ranging from 8 weeks to 6 months.¹² In a comparative study of 30 people, favourable findings for graft survival and early growth were reported in the group given PRP; medical treatment was applied to both groups in that study, so the comparison is not between PRP alone and a transplant without medication.¹³ Another study of 40 people also reported favourable growth findings; although its title says randomised, the methods section states that consecutive patients were allocated alternately.¹⁴

PRP is not an obligatory complement to a transplant and does not create a new donor area. The manner of application, the number of sessions and the timing are not given on this page; the general use of PRP, and its detail for hair, will be written separately in the non-surgical procedures section.

What is the place of other non-surgical options?

Non-surgical options varying with the cause are defined in hair loss, and some of them can be considered alongside a transplant or in place of one.⁶ Taking supplements without a deficiency being demonstrated is not presented as an alternative to transplantation.

There are also non-surgical approaches aimed at managing appearance. These do not aim at the same outcome as surgery and are not compared with it in terms of a success rate.

How are the anaesthesia and the session plan determined?

How many sessions will be needed depends on the size of the bare area and on the donor resource. Cleveland Clinic states that more than one procedure may be needed according to how much hair has to be moved.⁹ A review notes that where a correction is being considered because of dissatisfaction with the result, time should be allowed for growth to be assessed and, if required, a second procedure considered after at least 12 months; this is not a compulsory interval for every multi-session transplant.⁸

How do you prepare for surgery?

Smoking and nicotine: Smoking is a risk factor for wound healing problems after surgery. Direct surgical data on nicotine products other than cigarettes are scarcer. The practice reference of the American Society of Plastic Surgeons notes a lack of clinical data on e-cigarette use and surgical risk, but states that because nicotine is known to reduce blood flow, e-cigarettes and other nicotine products are regarded as a potential risk factor.¹⁵ Stopping smoking, vaping and other nicotine-containing products at least 1 month before the operation, and not using them after surgery until healing is complete, is therefore advised. The studies below concern smoking cessation; their results do not establish the same reduction in risk for every nicotine product. A review pooling 6 randomised and 15 observational studies showed that every week of abstinence added benefit, and that studies with at least 4 weeks of abstinence produced markedly better results than shorter ones.¹⁶ A study appraising systematic reviews together reported that cessation interventions beginning at least 4 weeks before surgery and combining multiple behavioural support sessions with pharmacotherapy reduced complications. The same study notes that interventions with only one component, even when started more than 4 weeks before surgery, raise quit rates without reducing complications.¹⁷ Shorter intervals are not useless either: in a meta-analysis of 55 studies covering adults undergoing a range of operations, the risk of pulmonary complications was 27 per cent lower in relative terms among those who stopped at least 2 weeks before surgery, and 29 per cent lower among those who stopped at least 4 weeks before, compared with those who continued smoking.¹⁸ The benefit therefore grows as the interval lengthens; being late does not make stopping pointless. These data cover a range of operations; they are not a rate specific to hair transplantation. Smoking is also among the reported risk factors for impaired tissue perfusion in the recipient area.⁸

Coexisting illness: Diabetes and blood pressure are expected to be under control before surgery. Where there is an active infection in the body, surgery is postponed.

Medication: Blood thinners and some herbal products can increase bleeding. Every medicine and supplement you take needs to be declared. Prescribed medication should not be stopped on your own decision.

Tests and anaesthetic assessment: The tests required are determined by general health and by the anaesthetic assessment. Any previous problem with anaesthesia or drug allergy should be declared. The instructions given about fasting and about how to take medication on the day of surgery are followed.

Home and transport: Someone is arranged to accompany you home on discharge. The timing of check-ups, the help you may need in the first days and the plan for time off work are organised beforehand. Follow the surgical team's guidance on preparing the operation area; do not shave or prepare the incision area at home on your own initiative.

How can the authorisation of the facility and the practitioner be checked?

In Türkiye, hair transplantation is governed by its own regulation. The Regulation on Hair Transplantation Units was published in May 2023 and amended in November of the same year and in September 2025.¹⁹²⁰²¹

Under the regulation in force, the steps of the procedure are separated according to who may carry them out:

• Opening the channels is carried out only by physicians holding a hair transplantation practitioner certificate, together with specialists in plastic, reconstructive and aesthetic surgery, specialists in dermatology and venereology, and physicians holding a medical aesthetics certificate²⁰²¹
• Harvesting the hair roots and placing them into the channels may be carried out by those physicians or by health professionals holding a hair transplantation assistant practitioner certificate, under the supervision and responsibility of the physician²⁰²¹
• Specialists in plastic, reconstructive and aesthetic surgery and specialists in dermatology and venereology are not additionally required to hold a hair transplantation practitioner certificate¹⁹
• Where the procedure is carried out under sedoanalgesia or general anaesthesia, a specialist in anaesthesiology and reanimation must be present¹⁹
• A certified physician may be responsible for at most 5 procedure rooms, and each procedure room has at least 2 health professionals holding an assistant practitioner certificate²⁰

Harvesting the roots belonged to the physician alone before the 2025 amendment; explanations resting on the earlier text are therefore out of date.²¹ The period of the transitional provision in the regulation has also been extended to 31 December 2026; until that date a separate arrangement applies to existing staff.²¹

What can be asked is this: the facility's operating licence, the name of the responsible physician and the basis of their authorisation, and who will carry out which step of the procedure. The regulation also requires an informed consent form to be taken from every patient and requires the technique applied, the number of roots transplanted and the team carrying out the procedure to be recorded.¹⁹ Where a document or its scope remains unclear, confirmation can be sought from the provincial health directorate.

What is recovery like?

The intervals below are drawn from institutional patient guidance and from a review of complications. The institutions give different intervals under some headings, and these are shown separately without being averaged.

• The procedure is carried out under local anaesthesia and sedation⁴
• The NHS states that the procedure usually takes 1 day, Cleveland Clinic that it can take several hours⁴⁹
• Discharge is on the same day; an overnight stay is not needed⁴⁹
• It is stated that the dressing can be removed on day 1⁹
• For the first wash, Cleveland Clinic states day 2 and the NHS day 6; that is, a range of 2 to 6 days is in question⁹⁴
• Swelling starts on day 1 to 2, is at its most marked on day 2 to 3, and settles within 5 to 7 days⁸
• Crusting lasts 2 to 10 days⁸
• Where the strip method was used, sutures needing removal can be taken out after 10 to 14 days⁴
• For returning to work the NHS states 1 to 2 weeks and Cleveland Clinic 3 to 5 days⁴⁹
• For returning to sport Cleveland Clinic states 3 weeks and the NHS a reduction in exercise in the first month; together these give a framework of 3 to 4 weeks⁹⁴
• The transplanted hairs fall out after a few weeks and then start to grow back⁴
• New hairs start to appear at around 4 months⁴
• For the result to be seen in full the NHS gives 10 to 18 months and Cleveland Clinic up to a year⁴⁹

No common day for the first check-up is given in the sources; the timing of check-ups and the care plan are set by the team carrying out the procedure.⁹

What should you pay attention to after surgery?

Washing and dressings: It is stated that the dressing can be removed on day 1.⁹ For the timing of the first wash the institutions give different days: Cleveland Clinic states day 2, and the NHS day 6 for washing gently by hand.⁹⁴ A review advises gentle cleansing within the first 24 to 72 hours and reports a delay of more than 3 days in washing among the risk factors associated with prolonged redness.⁸ These sources are not comparing the same care procedure; the range in the box is not an instruction from which a day may be freely chosen. When and how the first cleansing and the hair wash are to be carried out should be explained separately in the plan of the team performing the procedure.

Crusts: Crusting is an ordinary part of healing and lasts 2 to 10 days. Crusts that go beyond 10 to 14 days, or that are thick, call for assessment.⁸ Crusts are not picked off.

Swelling: Swelling on the forehead and around the eyes is among the expected findings. The review lists elevating the head and intermittent cold compresses among the measures that reduce swelling; where, how and for how long a compress is applied is determined by the care instructions.⁸ No pressure or contact is applied directly over the transplanted area.

Sleeping: Rest with the head elevated. Your surgeon decides how long that position and the avoidance of physical strain are continued.⁸ The position of the donor area and of the transplanted area are considered together; elevating the head does not mean that pressure may be put on the grafts.

Movement: Strain such as bending the head down, straining and heavy lifting is limited in the early period. Movements that stretch or rub the incision area are avoided. Even if you feel well, do not return to strenuous activity suddenly. Activity and rest through the day are organised according to the plan given on discharge.

Headwear and sun: The use of hats, helmets and similar headwear that could press on or rub the transplanted area, and protection from the sun, are explained separately in the care plan. No numerical interval for these was found in the sources.

Driving: Driving is not undertaken while sedation and the medicines used are affecting attention and reaction time. Being discharged the same day is not on its own permission to drive; the return is assessed according to the anaesthetic given and the discharge instructions.

Itching: Itching is common in the early healing period, most often starting on day 3 to 7 and lasting days or weeks.⁸ The area is not scratched and the crusts are not disturbed.

Smoking: Smoking impairs wound healing after surgery as well; cigarettes and nicotine products should be avoided until healing is complete.

How do the scars in the donor and transplanted areas change?

The two methods leave different scars. In the strip method a single linear scar remains in the donor area; in FUE many small round scars form, and these can show with a short haircut.¹⁰⁴ A scar-free result cannot be promised.

Small round areas of lightened colour are commonly seen in the donor area; a larger punch diameter, dense harvesting and darker skin are associated with this finding being more visible.⁸ Abnormal scarring, that is a raised or hardened scar, is rarely reported and appears over months; a personal or family history of abnormal scarring is among the risk factors.⁸

Where abnormal scarring develops, options such as silicone products and treatments applied into the scar are discussed.⁸ That does not amount to a routine scar-care schedule to be applied to every transplanted area.

Risks and complications

The frequencies and timings below are drawn from a review written on follicular unit excision. The authors state that the rates in their tables are approximate values derived from sources of differing quality and that the true population incidence remains uncertain.⁸ These rates are not an estimate of individual risk, do not automatically apply to the strip method, and cannot be added together to calculate an overall complication risk.

The headings are grouped by subject rather than by frequency.

Scarring, thinning and overharvesting in the donor area

Overharvesting can result in visible thinning and permanent donor depletion, and becomes apparent weeks or months after surgery. Inadequate donor assessment, high graft demand, repeated sessions in the same area and low baseline density are listed among the risk factors.⁸ The options for correcting that outcome are limited.

Temporary shedding can also occur in the donor area; it is reported to begin at 2 to 4 weeks and to settle within 3 to 6 months.⁸

Graft loss, density and problems with the hairline

Some of the transplanted roots may not take, the density achieved may fall short of what was expected, or the position and direction of the hairline may not look natural.¹⁴ The NHS counts transplant failure with continued hair loss among the reported risks.⁴

Dissatisfaction in the early period most often lessens by 6 to 12 months; where required, a corrective procedure is considered after at least 12 months.⁸

Folliculitis, cysts, bleeding and wound problems

In the review, folliculitis and pseudofolliculitis are given as approximately 12 per cent; folliculitis is described at 1 to 4 weeks and pseudofolliculitis at around week 10.⁸ Infection is reported at under 1 per cent and appears in the first 1 to 4 weeks.⁸

Bleeding is mostly intraoperative and mild; slight oozing can occur in the first 24 to 48 hours after surgery.⁸ Cysts in the form of small, firm nodules at the follicular openings are rarely reported.⁸

Impaired tissue perfusion in the recipient area is a rare outcome and appears within hours or days; smoking, diabetes, vascular disease and very dense packing are among the risk factors.⁸ Persistent redness is occasionally reported and can go beyond 4 weeks.⁸

Pain, altered sensation and shock loss

In the review, pain and sensory disturbances together are given as approximately 6 per cent. Early discomfort is described over the period from the first 24 to 48 hours to day 3 to 5, while sensory changes are stated to be able to last from days to months.⁸ In an FUE series reported there, long-lasting numbness or tingling was reported in approximately 2 per cent, and the review's general account describes resolution within 4 to 8 months in most cases.⁸

Temporary shedding of the existing hairs in the transplanted area (shock loss) can be seen 2 to 8 weeks after surgery, with regrowth beginning at around 3 months; the frequency reported ranges from 0.15 to 15 per cent.⁸ That wide range shows that a single rate cannot be taken as holding for everyone. Female sex, older age, female-pattern loss and very dense packing are listed among the risk factors.⁸

No guarantee can be given that all the hairs will regrow after shock loss. Attention is drawn to the possibility of permanent loss in hairs that were already thinned.¹

Anaesthesia and general surgical risks

Reactions related to anaesthesia and other general surgical risks are assessed together with state of health and the extent of the procedure. The NHS counts an allergic reaction to the anaesthetic among the reported risks.⁴

Blood clots: A clot forming in the leg veins and travelling to the lungs is serious. One-sided leg pain and swelling, sudden shortness of breath or chest pain need urgent assessment.

How do the transplanted hairs and the hairs around them change over time?

A transplant redistributes existing hair; it does not create a new resource. The result therefore depends on two separate things. The first is how the transplanted roots behave, the second how the person's own surrounding hair goes on.

A transplant does not halt ongoing loss. If the transplanted hairs remain while the surrounding hair continues to be lost, gaps can open up over time and a new plan may be needed.¹⁴ That is the reason for waiting at a young age and in unsettled loss.

If a further session is needed, its limit is the donor area. The donor resource does not renew itself, and the options for correcting a donor area that has been overused are limited.⁸³

What can be expected from the result?

Assessing the result takes months. New hairs start to appear at around 4 months; for the result to be seen in full the NHS gives 10 to 18 months and Cleveland Clinic up to a year.⁴⁹ An assessment made before that period has passed is misleading.

The former density is not expected to return in full. The aim of the operation is to distribute a limited resource in the way that changes the appearance most.¹³

The number of grafts is not a measure of success. A higher number has not been shown to give a better result, and overusing the donor area leaves a permanent outcome.³⁸

There is no single ideal hairline. A line drawn according to today's appearance can be left out of keeping as the loss progresses.¹

When should you contact a doctor?

Assessment is needed where hair loss has newly begun, is progressing quickly, is accompanied by itching, redness, pain or a sore, or where there are smooth, shiny areas on the scalp suggesting scarring.⁶²

After surgery, the following are not left to wait for a check-up:

• Swelling and hardening that keep increasing
• Pain that worsens or is not relieved by painkillers
• Darkening or blackening of colour in the transplanted or donor area
• Bleeding that does not stop
• Foul-smelling discharge, increasing redness and fever
• Crusts that go beyond 2 weeks or thicken
• One-sided leg pain and swelling, sudden shortness of breath or chest pain

An ordinary finding being expected does not mean that a worsening finding is disregarded.

About the numbers in this article

The intervals and the accounts of technique in this article are not values approved by the physician responsible for this website for their own practice. That is what sets this article apart from the other surgery articles. Institutional aftercare guidance, guideline recommendations and research findings are presented separately.

Where institutions give different intervals, each is identified by name and the values have not been averaged. Some ranges in the summary box gather the statements of more than one institution into a single short summary; those ranges are not the result of a single study. The NHS advice to reduce exercise in the first month likewise does not mean that all sport is permitted in the fourth week.

The level of evidence and grade of recommendation for guideline recommendations are written as the source itself gives them. The graft and density ranges are general recommendations, not a capacity calculated for an individual.

The approximate frequencies in the complications review come from sources of differing quality, and its authors state that the true population incidence remains uncertain.⁸ Those rates are not an estimate of individual risk and cannot be added together to calculate an overall complication risk. The review focuses on follicular unit excision; its figures do not automatically apply to the strip method.

The number of grafts, the number of hairs and the density per unit area are different measures and cannot be used in place of one another. Harvesting density belongs to the donor area and implantation density to the recipient area.

The data in the smoking cessation paragraph cover a range of operations.¹⁶¹⁷ In the results reported from Tang, the relative risk was 0.73 with a 95 per cent confidence interval of 0.60-0.89 for those who stopped at least 2 weeks before, and 0.71 with a 95 per cent confidence interval of 0.61-0.82 for those who stopped at least 4 weeks before.¹⁸ The 27 per cent and 29 per cent relative reductions in the shared paragraph are not an absolute complication rate specific to this procedure.

A number not being given for a risk in this article does not mean that the risk does not exist.

References

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