Hair loss in a short period of time is mainly considered to be total baldness, and it is recommended to go to the dermatology department and complete the relevant examination. Total baldness refers to a disease characterized by complete loss of hair on the scalp, a kind of severe baldness. The exact cause is still unclear, and it is currently believed that it may be related to multiple factors such as heredity, mental and emotional stress, endocrine disorders, and immuno-inflammatory diseases. About 25% of patients have a family history of the condition, and in addition neuropsychiatric factors are thought to be important predisposing factors. Total baldness does not lead to permanent destruction of hair follicles, so hair growth can be restored to normal. The following treatments may help: ① Oral corticosteroids to prevent the immune system from attacking healthy tissue. Minoxidil spray to dilate blood vessels and promote hair growth. Ultraviolet light therapy, which increases blood circulation to the hair follicles and stimulates hair growth.