Glossary term
DHI
Reference only — not medical advice. See disclaimer.
Direct Hair Implantation (DHI) is a hair transplant technique in which harvested follicular units are implanted directly into the recipient area using a specialised Choi implanter pen, without the need to pre-make recipient site incisions. This method allows for precise control of angle, depth, and direction, and is associated with higher graft survival rates in experienced hands.