Getting up in the morning with a lot of oil on the face may be caused by dietary factors, environmental factors, skin diseases and so on. 1. Dietary factors: patients often eat greasy food, high-calorie food, spicy and stimulating food, may make the sebaceous glands of the face secretion, thus appearing on the face of the symptoms of oil. 2. Environmental factors: high ambient temperature may also lead to exuberant secretion of sebaceous glands and oily face. 3. Skin diseases: When you suffer from certain skin diseases, such as acne and seborrheic dermatitis, the sebaceous glands will secrete a lot of sebum, and there may be Propionibacterium acnes or Pseudomonas furfurfur infections, which can also lead to oily face. It may also be caused by other reasons, and patients are advised to go to the hospital in time. After clarifying the cause of the disease, targeted treatment under the guidance of the doctor.