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RO Three different situations get called failure, and only two of them are. Separating them is the whole diagnosis, because each has a different answer and the first one has none.
| What is seen | What it is | Answer |
|---|---|---|
| Nothing has grown yet, months 2–6 | The normal course, not failure | Wait for the growth phase to finish |
| It grew, but far too thin at 12 months | Yield failure | A second procedure, if donor remains |
| It grew well, but looks wrong | Design failure | Correction, often by removing grafts |
Complications are common; failure is not. A systematic review of twenty-one observational studies covering 2,353 patients recorded a complication of some kind in 442 of them, most often pain, swelling and donor-area oedema rather than absent growth (Khatib, Skorochod & Wolf, Aesthetic Plastic Surgery, 2025). Most of what alarms patients in the early weeks belongs to that first group.
Design failure is the harder one. Yield can be added to if donor is left. A hairline in the wrong place, or hair pointing the wrong way, is corrected by taking grafts out — spending donor to undo donor already spent. That asymmetry is why planning carries more weight than any part of the surgery itself.
Related terms
For the phase where a normal result looks worst, see the ugly duckling phase. For results that went wrong and what can be done, see hair transplant gone wrong.
