Baldness refers to androgenetic alopecia in medicine, and there are many reasons for baldness, including heredity, strong secretion of androgen, oily skin, and excessive mental stress. 1. Heredity: If one’s family elders have a history of the disease, there will be a certain probability of inheritance. 2. Excessive androgen secretion: When the secretion of androgen is too vigorous, the top of the head will secrete too much oil, and when the pores on the top of the head are inhibited by androgen, it will also lead to the formation of baldness. 3. Oily skin: patients often consume oily food, or excessive oil secretion after puberty will affect the hair follicles, resulting in insufficient supply of nutrients to the hair, thus leading to baldness. 4. Excessive mental stress: Excessive mental stress can also lead to severe hair loss, thus causing baldness. Patients should pay attention to the normal daily care of the head, and need to wash and comb their hair frequently to promote blood circulation of the scalp. It is recommended that patients go to the hospital in a timely manner and receive standardized treatment under the guidance of a doctor.