Graft survival is the number that actually determines your result. You can move 3,000 follicles and still be disappointed if a meaningful share of them never grow. Clinics rarely discuss it, partly because it is difficult to measure precisely outside a study, and partly because it exposes how much depends on care rather than equipment.
What happens to a graft once it is removed?
From the moment a follicular unit leaves the scalp it is without a blood supply. It has to be kept cool and hydrated in a holding solution, handled gently, and returned to the scalp as quickly as is practical. Every extra minute out of the body, every rough grip with forceps, and every episode of drying reduces the chance that it takes.
This is why the size and organisation of the surgical team matters. A calm, well-drilled list moves grafts efficiently. A rushed one, or one where a single operator is doing too much, does not.
Which factors matter most?
Time out of the body and hydration are the two biggest. After those come handling technique, because crushing or stripping the surrounding tissue damages the follicle; channel depth and size, since a site that is too shallow, too deep or too wide compromises seating and blood supply; and the density attempted, because packing grafts too tightly can outstrip the local blood supply and cost you more than it gains.
What can you influence yourself?
More than you might think, and mostly in the first fortnight. Protect the grafts from knocks, follow the washing instructions rather than improvising, avoid smoking, keep alcohol down, sleep with your head elevated as advised, and stay out of heavy exercise, saunas and swimming until you are cleared. Sun protection matters too, as the healing scalp burns easily.
Why do results sometimes disappoint?
Where a result underwhelms, the cause is usually one of a few things: too few grafts for the area, a hairline designed without regard for future loss, poor handling on the day, or aftercare that was not followed. Very occasionally there is an underlying scalp condition that was not identified beforehand, which is why assessment matters.
Frequently asked questions
What survival rate should I expect?
Well-run procedures aim high, and published figures vary by technique and study. Be sceptical of any clinic quoting a precise guarantee, because survival cannot be verified graft by graft after the fact.
Does shedding mean the grafts failed?
No. Almost all transplanted hairs shed within the first weeks. The follicle stays and regrows from about three to four months. Shedding is expected, not a warning sign.
Can I improve survival with aftercare?
You cannot improve on the surgery itself, but you can protect it. Careful washing, no knocks, no smoking and following the written instructions genuinely matter in the first two weeks.
What if grafts do not grow?
Judge the result at 12 months, not before. If density is genuinely short of what was planned, we assess the donor area and discuss whether a second session is sensible.
Book a free consultation at our Harley Street clinic and ask us directly how we handle grafts.