The hair transplant, from donor zone to hairline

A hair transplant is surgery that relocates your own hair follicles from a donor area, usually the back and sides of the head, into thinning or bald areas. It does not create new hair: every graft placed in front is one fewer behind, which is why the donor supply shapes almost every decision in the process.

This page covers the hair transplant itself: the two ways surgeons harvest grafts, what "DHI" really describes, who is and isn't a good candidate, what happens on the day, how recovery unfolds month by month, and what can go wrong. It does not cover prices or destinations. Everything that could change is dated and sourced in our notes, and nothing here replaces a consultation with a qualified surgeon.

What is a hair transplant?

A hair transplant is an operation that takes follicles from a part of the scalp where they are genetically programmed to stay and places them into areas that have thinned. The International Society of Hair Restoration Surgery (ISHRS) describes the donor area as the fringe above the ears and around the back of the head.

Hair on the scalp grows in natural clusters called follicular units, groups of one to four hairs. Modern surgery moves those units intact rather than cutting larger plugs, which is why a well-done result is designed to blend with the hair around it rather than stand out as tufts.

The idea that makes the whole procedure work is called donor dominance. In 1959, the dermatologist Norman Orentreich showed that follicles moved from the donor area keep the growing behaviour of where they came from, not where they land. Transplanted hair from the back of the head therefore tends to keep growing at the front, while the original hair around it follows its own course.

FUE and FUT: the two ways grafts are harvested

There are two established ways to take grafts from the donor area: follicular unit excision (FUE) and follicular unit transplantation (FUT), also called strip harvesting. The difference is only in how grafts come out; once harvested, both are placed into the thinning area in broadly the same way.

In FUE, the surgeon removes follicular units one at a time with a tiny round punch. The ISHRS gives punch sizes of 0.7 to 1.2 mm, and in most cases the donor area is shaved first. FUE leaves no line, but it is not scarless: each extraction leaves a small dot scar, spread across the donor zone.

In FUT, the surgeon removes a thin strip of scalp from the back of the head and closes the wound with stitches or staples. Technicians then divide the strip under magnification into individual grafts of one to four hairs. The trade-off is a single linear scar, usually hidden by longer hair above it, in exchange for a donor area that doesn't need shaving.

Among surgeons who belong to the ISHRS, FUE is now the dominant method. In the society's 2025 practice census, members reported that 85.4% of their procedures on men used FUE harvesting, 12.5% used strip harvesting and 2.1% combined both in one session. For women the split was 68.2% FUE, 30.0% strip and 1.9% combined. Those figures describe what members do, not which method is better for you.

Is DHI a different kind of transplant?

No. The ISHRS states plainly that DHI "is not a hair transplant method and should not be marketed as such." The label is used for two things: placing each graft immediately after it is extracted, or placing grafts with a sharp implanter pen that makes the incision and inserts the graft in one movement.

Implanters are real instruments. A graft is loaded into a channel and a plunger pushes it into the skin; dull implanters go into incisions made beforehand, sharp ones make their own. A clinic may use them within an FUE procedure. What the ISHRS objects to is presenting the tool as a separate technique. The same society lists names such as Sapphire FUE, Ice FUE and Gold FUE as marketing terms it does not recognise. Our full FUE vs FUT vs DHI comparison goes through each name.

Who is a good candidate for a hair transplant?

A good candidate has two things, according to the American Academy of Dermatology (AAD): enough healthy hair in the donor area to move, and a scalp that can still grow hair in the thinning area. Men and women of all races can qualify.

The less obvious part of candidacy is time. Pattern hair loss usually keeps progressing, and the ISHRS notes that in young men the eventual pattern is usually not yet revealed. A hairline rebuilt at 23 to match a 23-year-old's loss can look out of place at 40, when the hair behind it has continued to thin and the donor supply is already partly spent. The AAD says young men with early loss may be asked to wait and treat first with a hair-loss medicine.

People who are usually not good candidates include:

• those whose hair is thin all over the scalp, including the donor area, so there is little to move
• those whose loss has a cause a doctor should investigate first, such as thyroid disease, low iron, alopecia areata or a scarring alopecia
• people expecting a full head of hair from a limited donor area
• very young patients whose pattern is still unclear; in the ISHRS census, 73.0% of members said they set a minimum age

Diagnosis comes before surgery. If you are not certain your hair loss is ordinary pattern loss, a GP or board-certified dermatologist is the first stop. Our detailed guide asks am I a candidate for a hair transplant question by question.

What happens on the day

A hair transplant is usually an outpatient procedure under local anaesthetic, and it takes most of a day. The AAD puts the time at four to eight hours, with most patients awake and the scalp numbed; some are also given a mild sedative.

The day follows a predictable order. The surgeon confirms the plan and marks the hairline, the donor area is prepared, grafts are harvested by FUE or FUT, and they are kept outside the body while the recipient sites are made. The grafts are then placed one by one. The design of the hairline, the angle and direction of each incision, and the number of grafts are clinical decisions, which is why it matters who performs them.

For a step-by-step version, see how a hair transplant works.

The recovery timeline

Recovery happens in two phases: the scalp heals within a couple of weeks, but the hair takes most of a year to show what it will do. The first phase is about wounds; the second is about waiting for follicles to cycle.

In the first days, bandages if used usually come off after a day, and the American Society of Plastic Surgeons (ASPS) says gentle washing can begin within two days. Stitches from strip harvesting come out in a week to 10 days, and ISHRS says the small scabs of FUE usually clear within about one to two weeks. The ASPS advises avoiding vigorous exercise and contact sports for at least three weeks.

Then comes the part that alarms people. Two to eight weeks after surgery, the transplanted hairs usually fall out, and the AAD calls this normal: the follicle stays in place and rests before growing again. By the third month the area may look thinner than before surgery. Most patients see results six to nine months after surgery, and for some it takes 12 months. The ISHRS FUE page notes that full results often take a year or more.

Our hair transplant timeline, month by month explains what each stage looks like and what is still normal.

Risks and side effects

A hair transplant is surgery, and it has surgical risks. A 2025 scoping review in Aesthetic Plastic Surgery found that serious complications are rare with experienced providers, but it listed a range of problems reported across studies:

• infection and bleeding
• swelling of the forehead, crusting and sterile folliculitis (inflamed follicles without infection)
• numbness around the donor or recipient area, sometimes persistent
• shedding of existing hair around the grafts, known as shock loss
• raised or wide scarring after strip harvesting
• grafts that fail to grow well
• over-harvesting, where too many units are taken and the donor area looks thin

Reported rates vary so widely between studies that we don't print them. Two longer-term risks deserve their own mention. First, hair loss can continue around the transplant; the AAD notes a dermatologist may recommend medicine to slow it, which is a prescriber's decision and not something this page advises. Second, the donor area is finite, so an over-harvested back of the head cannot be refilled.

Read our guide to hair transplant side effects and when to call the clinic for the signs that need a same-day call.

The black-market problem

The biggest avoidable risk is not a technique but who is holding the instruments. The ISHRS has run its Fight the FIGHT campaign since 2019 against surgery performed by unlicensed technicians, naming clinics in Turkey, Iran and several European countries, and "turn-key" set-ups in the US and Canada where technicians make the incisions.

The society's own members see the consequences. In its 2025 census, members reported that repairs of earlier black-market transplants made up 10% of their cases on average (median 5%), and 59.4% said black-market clinics operate in their city. Separately, the UK Foreign Office reports that 7 British nationals died in Turkey in 2025 following medical procedures; it does not say which procedures, and we make no claim about hair transplants specifically. What goes wrong, and what can and can't be repaired, is in hair transplant gone wrong.

How to get and compare consultations

The honest way to compare surgeons is to book more than one consultation and ask each the same questions. There is no form on this site, and we don't sell your details to clinics.

Questions worth asking at every consultation:

1. Who will perform each step: harvesting, making the recipient incisions and placing the grafts?
2. What is the diagnosis, and has anything other than pattern hair loss been ruled out?
3. How many grafts do you plan to take now, and how much donor supply will remain afterwards?
4. How will the design look if my hair loss continues over the next ten to twenty years?
5. What happens if grafts don't grow, and who handles aftercare and complications?

A free route that pays us nothing: the ISHRS Find a Doctor directory lists member surgeons, and a GP or dermatologist can confirm the diagnosis before you spend anything. If you are in the US or Canada and want a no-cost first consultation from a chain that performs transplants alongside non-surgical options, HairClub offers one; that link is an affiliate link and we may be paid if you book. A consultation is not a commitment, and a good one will tell you if surgery is not the right answer yet.