For patients who have exhausted their scalp donor supply or who have particularly demanding requirements in terms of graft count, body hair transplant (BHT) offers an additional source of follicles. The technique uses hair from the chest, back, beard, or other body sites to supplement scalp donor grafts.
The concept is sound — follicles from body hair sites can survive and grow when transplanted to the scalp. However, body hair has characteristics that differ from scalp hair, and understanding these differences is essential to realistic expectations.
Body hair follicles typically produce shorter, finer hair with a shorter anagen (growth) phase than scalp follicles. This means that chest hair transplanted to the scalp may grow to a limited length — often only a few centimetres — before cycling back to shed and regrow. This limits their usefulness for patients seeking to achieve any length on top, but makes them suitable for adding texture and bulk in areas where a close crop is acceptable.
Beard hair is the most commonly used body hair source and tends to produce the best results when used on the scalp, as it is more similar to scalp hair in calibre and growth characteristics than chest or back hair.
BHT is technically demanding and not all surgeons offer it. The yields are lower and the procedure is longer than standard scalp FUE. It is best suited to patients with advanced hair loss and a specific need for supplementary grafts beyond what the scalp donor zone can provide.
Related reading
