Body Hair Transplant (BHT)
Body hair transplant (BHT) uses non-scalp hair to supplement limited donor supply. While useful in selected cases, differences in growth cycle, texture, and density mean body hair cannot fully replace scalp hair and must be planned conservatively for natural results.
The limit is length, not survival. Body hair keeps the growth cycle it was born with. Its anagen phase is far shorter than scalp hair’s, so a body graft that takes and grows well still stops at a few centimetres and then sheds. It can fill space and add visual weight; it cannot be grown long or styled like scalp hair.
A smaller share is available at any one time. On the scalp the great majority of follicles are in the growing phase simultaneously. On the body a much larger proportion is resting, and resting follicles cannot be harvested. Two donors of the same visible area therefore yield very different numbers of usable grafts on the day.
| Source | Typical role | Main constraint |
|---|---|---|
| Beard | The strongest body donor; bulk and coverage | Thick calibre — wrong in the hairline |
| Chest | Filling behind the hairline, blending | Fine, short, variable survival |
| Abdomen and limbs | Last resort in depleted donors | Lowest and least predictable yield |
It is a supplement, never a substitute. Body hair transplantation exists for people whose scalp donor is already limited or spent. It is not a way to raise the graft number in a first procedure, and a plan that relies on it to reach a headline figure is a plan built on the least predictable hair available.
Related terms
- Beard to scalp hair transplant
- Donor area depletion
- Hair growth cycle
- Safe donor area
- Vellus and terminal hair
For how scalp donor capacity is assessed first, see the donor area guide. For cases where a previous procedure left little scalp donor, see revision hair transplant.
