Signs of a bad hair transplant, and what can be fixed
Seven things that go wrong, what each one is called, and which of them are correctable.
Written and clinically reviewed by Dr. G. Revanth, MBBS DDVL DNB · August 2026 · 3 min read
The common failures are pluggy grafts, a hairline placed too low or drawn too straight, hair growing at the wrong angle, visible donor depletion, and an island of transplanted hair with a widening gap behind it. Most of the front-of-scalp problems are correctable. An over-harvested donor area is not.
1. Pluggy grafts
Coarse tufts of three and four hairs grouped together, spaced too far apart, with bare scalp between them. Usually a legacy of older technique or of grafts placed without regard to the natural one-to-four distribution.
- ✓Correctable. Plugs are extracted, broken down, and redistributed as single and double units, with the extracted hair recycled rather than discarded.
2. A hairline placed too low
The hairline you had at sixteen, placed on a face that is now thirty-five. It looks wrong immediately and looks worse as the loss behind it continues.
- ✓Correctable. The front rows are extracted and moved backwards, and the resulting line is softened with single grafts.
3. A hairline drawn straight
Natural hairlines are irregular. A ruler-straight line reads as artificial from across a room even when the density is good.
- ✓Correctable, by breaking the line up with single-hair grafts and a scattered transition zone.
4. Wrong angle and direction
Hair standing up rather than lying forward, or fanning in a direction native hair does not go. This is a site-creation failure, which is why who makes the recipient sites is worth asking about before rather than after.
- ✓Partly correctable. Misdirected grafts are extracted and re-sited at native angle. Correcting an entire scalp is rarely feasible in one stage, so priority zones are agreed first.
5. The island effect
A dense band at the front with a widening gap behind it, because the transplant was performed while the native pattern was still moving. Common in patients operated on too young.
- ✓Correctable, but only after the continuing loss is medically stabilised. Grafting again into an unstable scalp reproduces the problem three years later.
6. Ridging and cobblestoning
A raised, uneven recipient surface where grafts were placed too shallow or too deep. Often accompanied by persistent redness or ingrown grafts.
- ✓Often managed without further surgery. Persistent ridging is assessed for release, and further grafting is deferred until the scalp is quiet.
7. An over-harvested donor
Visible thinning at the back and sides, pale scalp showing through, white punch scars concentrated in the centre. This is the one that matters most and it is the one people notice last.
- ✕Not correctable. There is nowhere to take hair from to fix the place hair is taken from. Scalp micropigmentation can camouflage it; nothing restores it.
Why the assessment starts at the back
Every revision consultation here begins with the donor area, not the hairline you came to complain about. What remains in the donor is the entire budget for correcting anything at the front. If the donor is spent, the honest conversation is about camouflage and expectations rather than about another operation.
Bring the operative note, the graft count and the consent form from the original procedure. If the previous clinic will not release them, say so — it happens often and it does not stop the assessment.