Hair Transplant Infection: Signs and What to Do

Michael Seutin Written by Michael Seutin, founder — former nurse, researching transplant pricing.

Published · every medical statement links to its source.

Infection after a hair transplant is uncommon. A 2018 review puts it below 1%[1]; one surgeon recorded 2 infections in 2,896 patients, both in people with diabetes[2]; and a published series of 533 procedures reported 0.2%[3]. What needs a doctor is redness with scattered pus-filled spots, a soft swelling that is red and tender, or swelling with pain and redness, with or without a fever[1][2]. The NHS says to contact the clinic as soon as possible if you have severe pain or any unexpected symptoms[4].

Normal healing or infection?

Crusting and itching are part of normal healing: the NHS lists temporary scabbing as common[4], and a 2018 review puts itching down to drying and crusting[1]. Small pimple-like bumps around new grafts are common too, and usually not an infection. A 2021 review found this sterile folliculitis in 203 of 2,896 patients, lasting from 3 weeks to 3 months[2], and the 2018 review describes it as usually a reaction to damaged hairs, with sterile pus[1]. The ISHRS patient brochure says minor inflammation around a new graft, like an infected ingrown hair or pimple, usually responds to simple warm compresses[5].

These point to infection instead:

Don't treat a suspected infection yourself. Call the clinic, as the NHS advises[4], and if you are already home, see a doctor there and tell them about the transplant.

It can start weeks later

Not every infection shows in the first week. In a study of 73 patients, bacterial folliculitis in the donor area appeared as late as 8 months after surgery[6]. A rarer and harder-to-treat kind is described below.

A rare, hard-to-treat kind: mycobacteria

Case reports describe infections with Mycobacterium abscessus, a drug-resistant germ, after hair transplants. A 2023 case report in the CMAJ describes a man who noticed nodules on his scalp 19 days after a transplant in Panama. Standard antibiotics did not clear them; he needed the abscesses drained and months of treatment before they resolved. The authors say these infections often appear weeks to months after surgery, and should be considered when a post-operative infection does not respond to standard antibiotics[7].

In August 2026, doctors in Vancouver reported two previously healthy men who developed this infection after FUE at the same clinic in Istanbul, one in 2023 and one in 2025. The bacteria from the two men differed by a single genetic variant, which the authors say strongly suggested a common origin despite the two-year gap, and a public health report was started. Both recovered, after 32 and 30 weeks of treatment, with their transplanted hair preserved. The authors note that access to follow-up after returning home is limited, which can delay diagnosis and treatment[8]. The paper does not name the clinic.

Who is more at risk

The 2018 review links infection to poor hygiene, heavy crusting, a pre-existing medical risk factor, and a strip wound closed under high tension, and says not following the washing and wound-care instructions may cause infection[1]. The ISHRS lists the risk factors your surgeon needs to know about, including smoking, diabetes, immune-suppressing drugs or illness, and recurrent skin infections[9]. Both infections in the 2,896-patient series were in people with diabetes[2]. Follow your clinic's written washing and wound-care instructions exactly.

If it starts after you fly home

The NHS warns that overseas clinics may not provide follow-up treatment, or not to the same standard as in the UK, and may have no healthcare professional in the UK you can go to[10]. The FCDO says healthcare after your treatment may be limited in the country you travel to, and that standard travel insurance does not normally cover you if you travelled abroad for elective surgery[11]. Before you book, get in writing who treats an infection once you are home, how you reach them, and who pays.

Before you rely on travel insurance for this trip

We read the policy documents themselves, from the nomad insurers people ask about to products sold for medical travel, and quote the exclusion clauses word for word with each document's date. If you are counting on a policy to pay for a complication, read the clause first.

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  • Lists what the price includes. Hotel, transfer, medication and follow-up are sometimes in the number and sometimes an invoice later.
  • Says what happens afterwards, and who to contact. Complications happen after the flight home, when the clinic is in another country.

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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.

  1. Complications in Hair Transplantation (Kerure & Patwardhan, J Cutan Aesthet Surg, 2018) — PubMed Central. Read 2026-10-23.
  2. Complications of Hair Transplant Procedures: Causes and Management (Garg & Garg, Indian J Plast Surg, 2021) — PubMed Central. Read 2026-10-23.
  3. Surgical complications in hair transplantation: a series of 533 procedures (Salanitri et al., Aesthet Surg J, 2009) — PubMed. Read 2026-10-23.
  4. Hair transplant — NHS. Read 2026-10-23.
  5. Medical and Surgical Options to Restore and Maintain Scalp Hair (patient brochure, 2005) — ISHRS. Read 2026-10-23.
  6. Complications of hair restoration surgery: a retrospective analysis (Loganathan et al., Int J Trichology, 2014) — PubMed Central. Read 2026-10-23.
  7. Mycobacterium abscessus scalp infection after hair transplantation in Central America (Chow et al., CMAJ, 2023) — PubMed Central. Read 2026-10-23.
  8. Cluster of genomically linked Mycobacterium abscessus infections following hair transplantation in Turkey (Jia et al., J Travel Med, August 2026) — PubMed. Read 2026-10-23.
  9. Things That Increase Your Risk for Complications After Surgical Hair Restoration — ISHRS. Read 2026-10-23.
  10. Cosmetic surgery abroad — NHS. Read 2026-10-23.
  11. In hospital abroad: going abroad for medical treatment and planned elective surgery — FCDO (GOV.UK). Read 2026-10-23.

Read next

Hair transplant scabs → Hair transplant side effects → Flying home after a hair transplant →

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Questions, answered

How common is infection after a hair transplant?

Uncommon. A 2018 review puts it below 1%, a published series of 533 procedures reported 0.2%, and one surgeon recorded 2 infections in 2,896 patients, both in people with diabetes.

Are bumps after a hair transplant an infection?

Usually not. Small pimple-like bumps around new grafts are often sterile folliculitis, seen in 203 of 2,896 patients in one series. Redness with scattered pus-filled spots, a soft red tender swelling, or swelling with pain and fever point to infection: contact your clinic.

Can an infection start weeks after a hair transplant?

Yes. One study found bacterial folliculitis in the donor area as late as 8 months after surgery, and rare mycobacterial infections often appear weeks to months later and may not respond to standard antibiotics. Tell any doctor who treats you about the transplant.