Hair Transplant Gone Wrong: Causes and Repair
Written by Michael Seutin,
founder — former nurse, researching transplant pricing.
Published · every medical statement links to its source.
Most hair transplants don't go wrong: a 2021 review calls the surgery low-risk and relatively safe[1]. When one does, it is usually the look that fails rather than your health: an unnatural hairline, hair growing at the wrong angle, poor growth, visible scarring, or an over-harvested donor area[1][2]. Much of that can be improved. An over-harvested donor area largely can't: the ISHRS calls it an uncorrectable problem[3].
What a botched transplant looks like
- An unnatural hairline. A 2018 review calls the hairline the surgeon's signature, and puts an unnatural result down to poor design and surgical execution: a hairline set too low, blunted temples, or larger grafts at the front that show as plugs[2]. A 2021 review adds that a low, teenage-style hairline needs more density, and if the hair behind it keeps falling, the result can look very unnatural[1].
- Hair at the wrong angle or in the wrong direction, which the 2018 review calls a common complication[2].
- Poor growth or see-through coverage. The 2021 review traces poor growth to damage during extraction, poor handling, grafts drying out and long times outside the body, and thin coverage to too few grafts or poor planning[1].
- Thinning later. More often this is your own untransplanted hair continuing to fall: the 2021 review says a transplant does not protect existing hair[1], and the NHS says your hair might continue to thin around the transplant[4]. Transplanted hair itself can thin or fall out later if it was taken from outside the safe donor area[1][5].
- Visible scars: a wide strip scar on the back of the head, or the tiny dots FUE leaves, which show on a shaved head[1].
- A depleted donor area. Aggressive, uneven harvesting can leave a moth-eaten look at the back of the head[2].
- Bumpy skin around the grafts, called cobblestoning[2].
Why it happens
The 2018 review notes that as hair transplants became popular, doctors from other specialties, often with inadequate training, began performing them, and the total number of complications rose[2]. The ISHRS goes further. Its Fight the FIGHT campaign, launched in 2019, warns about illicit clinics where unlicensed technicians perform the surgery, and says its members see scarring, unnatural hairlines, poor growth, wrong hair direction, depleted donor areas and infections in these patients[6]. The ISHRS also says a natural result depends on how the hairline is designed, how the recipient sites are angled and spread, and how gently the grafts are placed[3].
How often transplants need repair
No registry counts failed hair transplants. The closest figures are surveys of ISHRS member surgeons:
- In 2021, 5.4% of the hair restoration patients members treated came to repair an earlier surgery by another physician or a black-market clinic, up from 4.2% in 2019[7].
- For 2024, members reported that "the average percentage of repair cases due to a previous black-market hair transplant in 2024 was 10%, up from 6% in 2021"[8].
Those describe what repair surgeons see, not the share of all transplants that fail. For scale, one surgeon's record of 2,896 patients lists 26 who were unhappy with the result, because their untransplanted hair kept falling, and 5 who lost some of the implanted hair[1].
What repair can and can't do
- A wide strip scar can be revised, or hair can be transplanted into it, and scalp micropigmentation can camouflage it without surgery[1].
- Cobblestoning mostly improves with time; scars that don't may need to be cut out[2].
- Thin areas can be filled with another session only if there is donor hair to spare. The ISHRS describes the ideal candidate as someone with donor hair for the transplant and reserves for future use[3].
- An over-harvested donor area is the hardest. The ISHRS calls overharvesting uncorrectable[3], and says over-harvested donor areas can be very difficult to correct; where damage can be fixed, patients often need more than one corrective procedure[8].
Each year on 11 November, the ISHRS runs World Hair Transplant Repair Day, which connects people harmed by black-market clinics with volunteer member surgeons for a chance of a free corrective procedure[8].
If yours went wrong
- Check the calendar first. The NHS says new hair usually starts to appear after about 4 months and the full result should be seen after 10 to 18 months[4].
- Speak to the surgeon who treated you. The NHS says to do that if you are not happy with the results or think the procedure was not carried out properly, and to contact the clinic as soon as possible about severe pain or unexpected symptoms[4].
- In England, the NHS points to the Care Quality Commission for concerns about your care, and the GMC for concerns about a doctor[4].
- If the surgery was abroad, the NHS says to find out, before you go, what happens if you need more surgery, how easily you could travel back, and what it would cost[9]. If it is already done, ask the clinic those questions now, in writing.
Lowering the odds before you book
The ISHRS urges patients to ask any clinic these questions[6]:
- Who will evaluate my hair loss and recommend a treatment, and what is their education, training, licensure and experience?
- Who will be involved in performing my surgery, what role will each person play, and what is their training and experience?
- Will anyone not licensed in this country be making incisions or harvesting grafts during my surgery? If so, who, and why are they legally permitted to?
- Is everyone involved in my surgery covered by malpractice insurance?
Who we checked, and who we refused to list
We have checked 44 Turkish hair transplant businesses. 36 are clinics listed in our directory. The other 8 were checked and not listed, and our transparency report names each one with what we observed and the date we observed it.
Why they were not listed:
- 3 · named no physician on their own site
- 1 · an agency or intermediary, not an operating clinic
- 3 · no primary source to build a listing from
- 1 · a second domain for a practice already listed
Checked means a person read the business's own website, or looked for one, and recorded what was there on a stated date. It is not a review and not a verdict on the surgery.
Clinics that name the surgeon who operates
Of the 36 clinics we track, 33 name the surgeon who operates on their own website. We read each clinic's own site by hand and record what it says. This counts the clinics that name someone; it is not a verdict on the rest.
A few of them, lowest listed price first:
Sources
Primary sources only: the NHS, the FCDO, the ISHRS and peer-reviewed papers on PubMed and PubMed Central. Each was opened and read on the date shown.
- Complications of Hair Transplant Procedures: Causes and Management (Garg & Garg, Indian J Plast Surg, 2021) — PubMed Central. Read 2026-10-23.
- Complications in Hair Transplantation (Kerure & Patwardhan, J Cutan Aesthet Surg, 2018) — PubMed Central. Read 2026-10-23.
- FUE Hair Transplant: Benefits, Process & Recovery — ISHRS. Read 2026-10-23.
- Hair transplant — NHS. Read 2026-10-23.
- Side-effects from follicular unit extraction in hair transplantation (Avram et al., J Cutan Aesthet Surg, 2014) — PubMed Central. Read 2026-10-23.
- ISHRS Launches Fight the FIGHT Public Awareness Campaign to Combat Fraudulent Hair Restoration Practices Worldwide (1 November 2019) — ISHRS. Read 2026-10-23.
- Down to One Hair Transplantation Procedure From 3.4 to Achieve Desired Result: ISHRS 2022 Practice Census (22 April 2022) — ISHRS. Read 2026-10-23.
- World Hair Transplant Repair Day Shines Light on Proliferation, Dangers of Black-Market Hair Transplant Clinics Worldwide (29 October 2025) — ISHRS. Read 2026-10-23.
- Cosmetic surgery abroad — NHS. Read 2026-10-23.
Read next
← The full hair transplant recovery timeline, day by day to month 12
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Questions, answered
Usually an unnatural hairline, hair growing at the wrong angle, patchy or poor growth, visible scarring, or a thinned, moth-eaten donor area. Published reviews trace most of these to planning and surgical technique.
Often in part. A wide strip scar can be revised or camouflaged, and cobblestoning often improves or can be cut out. An over-harvested donor area is the hardest: the ISHRS calls overharvesting uncorrectable, and says repairs often need more than one procedure.
The NHS says new hair usually starts to appear after about 4 months and the full result should be seen after 10 to 18 months. Talk to your surgeon before then if something worries you, but judge the result at the end of that window.