After a hair transplant we advise to carefully protect the transplanted hairs for the first 5 days, after which showering and increasing your activities is possible. The transplanted hair shafts will typically fall out in about 3 weeks and the new hairs will start to grow in at 3-4 months. Full growth is judged at 10-12 months. Sometimes the native hairs in the recipient area will continue to thin over time which can give the illusion of a failed transplant, when in reality most of the density is actually from the transplanted hair. Eating spicy foods postop thins the blood, which causes more bleeding and bruising, and therefore delaying the healing process. Gary Linkov, MD Hair Specialist Manhattan