If you scratch your scalp for 20 days after hair transplantation, the hair follicles will not fall out easily if you do it gently, but if you scratch hard, the hair follicles may fall out. The transplanted hair follicles can basically become alive in 48 hours after hair transplantation, and the transplanted hair follicles will basically grow and stabilize in a month or so. 20 days after hair transplantation belongs to the hair follicle’s recovery period, and the hair follicles won’t fall off easily if you scratch the hair gently, but the hair follicles may fall off if you scratch them hard. It takes about one year after hair transplantation to achieve the best results. During the recovery period, avoid rubbing the hair transplantation site too heavily, do a good job of daily care, avoid using too hot water when shampooing, and the water pressure should not be too high, which will help to keep the results of the hair transplantation lasting.