Androgenetic alopecia occurs during and after puberty and is a common hair loss disorder characterized by the miniaturization of hair follicles and gradual reduction of hair without scarring in the area of hair loss and is the most common type of male pattern baldness. Of course, it can also occur in women, with progressive reduction of hair on the top of the forehead being the main manifestation. Genetic factors and androgens are the main factors in the development of androgenetic alopecia. Androgenetic factors and androgens are the main factors in the development of androgenetic alopecia. Although androgenetic alopecia does not affect physical health, it can affect the patient’s psychological health and quality of life by affecting the appearance. Early treatment is effective, and oral and external medication and hair transplantation can be used. In daily life, we should pay attention to the water used for washing hair not to be too hot, and to be gentle when shampooing, not to pull the hair with force, to develop good habits of life and hygiene, to keep the head clean, and not to wash the hair too often. You should not use alkaline soap or shampoo when shampooing, and you should not perm or dye your hair too often, because perming too often will damage the structure of the hair, making it less elastic and easy to break when combing. The diet should be diversified and nutritious, correcting the habit of picky eating and limiting the intake of diet containing high fat to avoid the increase of blood lipids and sebum secretion, which will aggravate androgenic hair loss.