Everyone asks about the area they want covered. The number is actually set at the other end of the head, by how much the donor area can give up without ever looking harvested — because that supply is finite, does not regenerate, and has to last the rest of your life.
The rough numbers
These are typical ranges for a first procedure. Yours will be set by measurement, not by this table.
| What is being covered | Typical graft range |
|---|---|
| Hairline lowering or refinement only | 1,000–2,000 |
| Receding temples and front third | 2,000–3,000 |
| Front and mid-scalp | 3,000–4,500 |
| Crown only | 1,500–2,500 |
| Beard or moustache | 1,000–3,000 |
| Eyebrows (both) | 300–700 |
Why the donor area sets the ceiling
The safe donor zone is a band around the back and sides where follicles are genetically resistant to the hormone driving male pattern loss. A typical donor holds somewhere around 5,000 to 7,000 extractable grafts over a lifetime, across all procedures you will ever have. Take too many at once and the donor thins visibly — and that is permanent, obvious in short haircuts, and very hard to repair.
What a real assessment involves
- Donor density measured with a densitometer, not estimated from a photo
- Hair calibre — thicker hair covers more scalp per graft, so fewer grafts go further
- Checking the donor zone itself for miniaturisation, which changes everything
- Your Norwood stage, and a judgement about where it is heading
- Whether you are on medication that may hold your native hair
The part clinics skip
Androgenetic loss continues after a transplant. If a hairline is built at twenty-five and nothing is done about the native hair behind it, that hair keeps receding and you are left with a transplanted island and a gap behind it. A surgeon planning properly will design conservatively, discuss whether medication is appropriate for you, and hold grafts in reserve.
A clinic that offers you the most aggressive hairline you ask for, with the largest graft number, in one session, has optimised for the sale rather than for how you will look at forty.
