Male pattern baldness is usually caused by androgenetic alopecia or spot baldness, which can be treated by medication, hair transplantation and changing lifestyle habits. 1. Androgenetic alopecia: Most common in males, it often develops during puberty, and is characterized by progressive reduction, thinning and alopecia or thinning of hair on the head. It can be treated with oral anti-androgen drugs such as Finasteride, topical Minoxidil for hair growth, and hair transplantation if necessary. 2. Patch baldness: Patch baldness is a psychogenic, autoimmune-associated, non-scarring hair loss disease that can occur anywhere on the body. Typical manifestation is the sudden appearance of round or oval hair loss areas of varying sizes and numbers with clear boundaries. Bald areas can be treated with glucocorticosteroids such as Betamethasone Compound Injection for intradermal injection. Baldness in men is recommended to consult a doctor for diagnosis and treatment, and at the same time to pay attention to regular work and rest, avoid staying up all night.