Contraindications for hair transplantation are fine hair in the occipital area, low density, and too large an area of hair loss. In addition, the people who are not suitable for hair transplantation mainly include the following categories: 1, patients with bleeding disorders, the surgery may lead to bleeding, affecting the safety, so it is not recommended. 2, baldness patients: baldness is a self-limiting disease, although the course of the disease is longer, but more can be cured, not blindly hair transplantation before determining whether it can be cured; 3, burns, scalded just healed patients: this period of time, patients, due to the fragility of the subcutaneous tissues, the blood transport tissue is vulnerable to damage, so at this time for hair transplantation can not be given to the hair follicles a good living environment, resulting in a lower follicular survival rate; 4, serious underlying disease patients: Patients themselves have serious underlying diseases, such as hypertension, diabetes, etc., patients who can not tolerate surgery; 5, combined with psychological disorders and patients with high expectations of hair transplantation, the line of hair transplantation surgery should be carefully considered before.