The greasy face in the morning is considered to be related to genetics, poor diet and irregular work and rest. 1. Genetic factors: If the parents have oily skin, the next generation has a higher chance of having oily skin, which can lead to a greasy face in the morning. 2. Improper diet: If you often intake of high sugar, greasy food, such as cake, chocolate, fat meat, etc., will also lead to the face easy to oil, so that the morning up face greasy situation. 3. Irregular work and rest: for a long time to stay up late, irregular work and rest of the crowd, will also lead to the face of serious oil, will cause the morning up face greasy. The reason for the greasy face in the morning is more, it is recommended to develop good hygiene habits, keep the face clean. The diet is light, regular work and rest, and avoid staying up late for a long time.