Excessive abdominal hair may be caused by genetic factors, excessive secretion of androgens, other diseases and other factors. 1. Hereditary factors: If the patient’s parents have high body hair, the patient may inherit the genes of the parents, resulting in high abdominal hair. This is usually a normal physiological phenomenon. 2. Excessive secretion of androgens: If the patient is a man or a woman, the abdominal hair may be related to the high secretion of androgens in the body, which will lead to the appearance of more sweaty hairs on the surface of the skin, thus causing the symptom of abdominal hair, and need to cooperate with the doctor for treatment. 3. Other diseases: if the patient suffers from polycystic ovary syndrome, congenital adrenal hyperplasia, etc., these diseases will lead to high levels of androgens in the body, triggering the symptoms of abdominal hair. At the same time, it is accompanied by symptoms such as scanty menstruation, ovulation disorders and precocious puberty. When the patient has abdominal hair, accompanied by other uncomfortable symptoms, need to go to the hospital in time for examination, to clarify the cause of the disease, and then symptomatic treatment.