The common causes of more oil on the body are physiological factors (such as congenital, poor lifestyle, etc.), pathological factors (such as skin damage, seborrheic dermatitis) and so on. 1. Physiological factors: (1) congenital, hereditary skin type, that is, oily skin, sebaceous gland function is born more hyperactive, oil function is stronger, so the skin is more oily; in particular, the body androgen activity is higher, the role of sebaceous gland cells in the sebaceous glands of the hair follicle, stimulating the synthesis of more sebum and secretion, so generally to puberty, the person’s skin oil secretion is too much, resulting in greasy skin. (2) bad lifestyle: some people drink less water, often eat spicy, fried, stimulating food and high sugar and high fat diet, such as barbecue, beer, desserts, etc., can stimulate the skin oil secretion, thus triggering the body oil; smoking and drinking, long-term late at night, do not pay attention to the skin cleanliness, mental stress, etc., but also endocrine disorders, triggering the face and body oil. 3. Pathological factors: (1) skin damage: the sebaceous layer and stratum corneum on the surface of the skin are subjected to various external stimuli, so that the skin is harmed, the normal function of the skin is damaged, which can lead to skin oil, common stimuli, including prolonged exposure to ultraviolet irradiation, computer radiation, sunlight exposure or external stimulating drugs. (2) seborrheic dermatitis: the main manifestation of the oil secretion is exuberant, resulting in a decline in the skin’s water locking function, easy to block the mouth of the hair follicle caused by follicle keratinization abnormalities, accompanied by skin oil. The body love oil can be improved through self-regulation, if the regulation can not be improved, it is recommended that the dermatology follow-up.