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RO A hair transplant moves hair; it does not create any. The total number of follicles on a head is the same before and after. Surgery redistributes them — taking units from a region that keeps its hair and placing them where hair has been lost. Everything else about the operation follows from that one fact.
The biology it relies on is donor dominance. A follicle carries its own programming with it. Hair taken from the permanent zone continues to behave as permanent-zone hair after it is moved, which is why the result lasts and why the boundary of that zone matters more than any technique.
| What it is | What it is not |
|---|---|
| Redistribution of existing follicles | New hair, or a cure for hair loss |
| Grafts of one to four hairs each | One graft equalling one hair |
| Permanent for the follicles moved | Protection for the native hair around them |
The unit that is moved is a follicular unit, not a hair. Hair grows in naturally occurring clusters of one to four, and the graft is that whole cluster. This is why a graft count and a hair count are different numbers, and why comparing two quotes on grafts alone compares very little.
It treats the appearance, not the cause. Native hair around the transplanted grafts continues to follow its own pattern, so surgery is usually planned alongside whatever is being done to slow that loss — not instead of it.
Related terms
- Graft vs hair count
- Safe donor area
- Hair growth cycle
- FUT vs FUE
- Hair follicle anatomy
- Androgenetic alopecia
For how the operation is carried out, see the FUE technique. For whether it is the right step for you, see should I get a hair transplant.
