Oily face and body may be caused by physiological factors, such as bad habits, unhealthy diet, etc.; it may also be caused by pathological factors, such as acne, seborrheic dermatitis and other diseases caused. 1. Physiological factors: (1) bad habits: irregular work and rest, often stay up late, lack of sleep, long hours of Internet access, mental stress, etc., can lead to endocrine disorders in the body, causing increased oil on the face and body. (2) unhealthy diet: if you often eat greasy food, fried food, fatty meat and other high-fat foods, causing lipid metabolism disorders, sebum secretion increases, resulting in more oil on the face and body. 2. Pathological factors: (1) acne: usually caused by exuberant secretion of skin oil, hyperkeratosis of follicular sebaceous gland openings, Propionibacterium acnes infection, etc., so there can be more oil on the face and body, and there will also be pimples, inflammatory pimples, nodules, cysts and so on. (2) Seborrheic dermatitis: the cause of this disease is unknown, and may be related to genetics, Malassezia infection and other factors, which can cause exuberant secretion of sebum in the skin, thus leading to oily face and body. Face and body oily may also be caused by other reasons, it is recommended that patients go to the hospital in a timely manner, after a clear diagnosis under the guidance of the doctor for targeted treatment or therapy.