A beautiful head of hair has always been an important part of a person’s overall beauty, in recent years, with the increase in work, life pressure, environmental pollution and other factors, hair loss population is rapidly expanding, not only the middle-aged and elderly, more and more young people into the hair loss crowd. Hair loss is not only a skin disease, but also a physical and mental disease that affects people’s psychological health, especially severe hair loss, which has brought negative effects on people’s work, study and life to varying degrees, and more seriously, some patients have fallen into a deep psychological crisis. The causes of hair loss are complex, in addition to genetic factors, increased androgen levels in men is one of the main reasons, Internet access, staying up late, alcohol abuse, smoking and other bad lifestyles are also seriously damaging the health of the hair. In addition to the treatment of hair loss such as oral androgen suppression, hair transplantation has emerged as a new and proven technique to effectively treat permanent hair loss.