Whether hair loss will occur after hair transplantation varies from person to person. Because each person has different physique and different degree of toughness of hair follicles, some patients shed more after hair transplantation and some shed less or even not, which will eventually remain in a dynamic balance and will not have a great impact on the image. Hair loss can be caused by genetic factors, ageing, immune abnormalities, excessive mental stress, endocrine disorders, taking certain medications and other factors. The principle of hair transplantation is a method of transplanting hair follicles from the back of the occipital area to the hair loss area using special instruments to make the hair grow in the hair loss area. After hair transplantation, patients should pay attention to the shedding and resting period of hair follicles after hair transplantation, and the shedding at this time is a normal phenomenon, so there is no need to worry about it. In addition, post-implant patients should try to reduce perming and hair coloring; keep a relaxed state of mind and avoid long time anxiety; don’t comb your hair too hard; choose a shampoo that suits your hair type; and consume enough protein to ensure the basic nutrition for hair growth. It should be noted that hair transplantation should be done after hair loss is controlled, and patients with genetic hair loss should continue to use medication to maintain the hair in the non-implant area after hair transplantation. It is recommended that patients go to an experienced hair transplant clinic and pay attention to hair care to ensure the results of hair transplantation.