Hair oil face also oil reason is common in personal constitution, seborrheic dermatitis, environmental factors, endocrine factors, dietary factors and so on. 1. personal constitution: if the individual skin belongs to the oily dermatitis, the skin is easy to secrete a lot of oil, will lead to the phenomenon of hair oil face oil. 2. Seborrheic dermatitis: the cause of this disease is unknown, may be related to heredity, fungal parasites, skin lipids and other factors, will not only appear hair oil face oil, there will also be scaly symptoms. 3. Environmental factors: If you are in a hot and stuffy environment, especially in summer, your skin will sweat, and while sweating, it will also promote the discharge of oil, which will result in oily hair and face oil. 4. Endocrine factors: patients with chronic diseases, such as chronic gastroenteritis, chronic hepatitis, tumor diseases, etc., need to take specific drugs for a long time, easily caused by endocrine disorders in the body, resulting in hair oil face oil phenomenon; in addition, in puberty, due to the body’s hormone levels are unstable, increased secretion of androgens, but also prone to induce more skin oil. 5. Dietary factors: if a large number of long-term eating high-fat, high-sugar foods, drinking alcohol, spicy stimulating food, etc., can also be induced hair oil face oil. It is recommended that patients usually pay attention to skin hygiene and sanitation, if necessary, to the regular hospital, after a clear diagnosis, treatment.