Hair Transplant Complication Spectrum
모발이식 합병증 (mobal isik hapbyeongjeung — hair transplant complications) span from universal but temporary shock loss to rare permanent donor damage. The table below covers the primary complication categories for FUE and FUT procedures at Korean clinics.
| Complication | Estimated Likelihood | Severity (1–5) | Reversible? | Action Required |
|---|---|---|---|---|
| Shock loss (temporary shedding) | 30–50% | 1 | Yes — full regrowth by month 4–6 | No action; reassurance only |
| Itching and scalp crusting | 70–90% | 1 | Yes — resolves in 1–3 weeks | Gentle aftercare per clinic protocol |
| Poor graft survival (<70%) | 5–15% (varies by clinic) | 2–3 | No — lost grafts are permanent | Medical review; assess whether re-implantation is feasible |
| Infection at donor site | 1–3% | 2–3 | Yes — with antibiotics | Contact clinic immediately; oral antibiotics |
| Infection at recipient site | <2% | 2–3 | Yes — with antibiotics | Contact clinic; may require topical treatment |
| Visible FUT linear scar | Near-universal (FUT) | 2 | Partially — FUE camouflage possible | Scar revision if functionally bothersome |
| Donor area thinning (overharvesting) | <3% (ethical practice) | 3–4 | No — permanent | Scalp micropigmentation for camouflage; no hair-bearing correction |
| Numbness at donor site (temporary) | 10–20% | 1 | Yes — resolves in 1–6 months | Monitor; note if worsening |
| Numbness at donor site (permanent) | <2% | 2 | No | Neurological assessment if limiting |
| Keloid or hypertrophic scar | <2% (higher in predisposed individuals) | 2–3 | Partial — treatable but not eliminated | Dermatology consultation; corticosteroid injection |
| Unnatural hairline (aesthetic) | Variable by surgeon skill | 2–3 | Partial — revision possible | Revision surgery or scalp micropigmentation |
Warning Signs After Hair Transplant
Most post-transplant discomfort is expected: scalp tightness, crusting, and some redness at extraction and implantation sites are standard for the first 7–14 days.
Contact your clinic the same day if you experience:
- Pus or foul-smelling discharge from either the donor or recipient area
- Fever above 38°C that persists beyond post-operative day 3
- Swelling that extends beyond the scalp into the face or neck (indicating possible spreading infection)
- Donor area crusting that does not resolve after 3 weeks
At your 12-month assessment, discuss with your surgeon:
- Visible patchiness or density gaps where grafts were implanted
- Visible thinning in the donor area when hair is worn short
- An unnatural-looking hairline that does not match the pre-operative plan
How long before I can see if my hair transplant in Korea worked?
Transplanted hair sheds within the first 4–8 weeks — this is normal shock loss and does not indicate failure. New growth begins around month 3–4 and accelerates through month 6. A meaningful assessment of density and coverage is possible at 8–10 months; final results are typically not stable until month 12. Patients who travel to Korea and assess their result within weeks of the procedure are assessing shock loss, not outcome.
What is overharvesting and how do I avoid it?
Overharvesting is the extraction of more grafts from the donor area than the safe zone can support, resulting in visible thinning or patchiness at short hair lengths. Korean hair transplant specialists calculate a safe extraction limit based on your donor density and scalp laxity. To avoid overharvesting, request a written graft count recommendation and ask the surgeon what your maximum safe extraction limit is before proceeding. Clinics that promise unusually high graft counts without examining your donor area should be treated cautiously.
What is the minimum Seoul stay for a hair transplant?
FUE hair transplant requires a minimum 3–5 days in Seoul: consultation day, procedure day (4–10 hours depending on graft count), and 1–2 post-operative aftercare days. FUT requires a similar stay but with an additional suture removal appointment at day 7–10, which many patients complete via telemedicine or with a home-country GP. Most Korean hair transplant clinics provide detailed aftercare instructions and remote follow-up capability.