If you lose 100 to 120 hairs per day for more than three months, you are suffering from pathological hair loss and should go to a regular hospital dermatology department as soon as possible to avoid delaying the treatment. Some patients with hair loss who are eager to save their hair tend to “rush to the doctor”, either by believing in partial prescriptions or the so-called “special drugs”, or by believing in the advertisements of some beauty salons, hair care centers and shampoo products, mistakenly believing that “anti-hair loss” is a beauty treatment. The product advertisements, mistakenly thinking that “anti-hair loss” belongs to the beauty category. Hair loss is mainly divided into two categories: congenital hair loss and acquired hair loss. Acquired hair loss is related to genetics and abnormal androgen metabolism. The epidemiological survey of androgenetic alopecia conducted in six provinces and cities in China in 2008 showed that the proportion of male alopecia was about 20% and the proportion of female alopecia was about 5%. In addition to early detection and treatment at a regular hospital, the correct approach is to insist on long-term treatment. The treatment of hair loss is a constant battle. Generally speaking, patients with androgenetic alopecia will see the effect after 6 months of oral finasteride (Bofax), and the best effect can be achieved after 1-2 years of continuous treatment. In order to standardize the treatment of androgenetic alopecia, some tertiary hospitals in Beijing, Shanghai and other cities, with the support of relevant parties, have set up special androgenetic alopecia treatment centers one after another to promote the knowledge of hair loss, correct patients’ treatment misconceptions and advocate regular treatment, so that the majority of hair loss patients can get rid of the trouble of hair loss as soon as possible.