Eating greasy things diarrhea may be indigestion, gastrointestinal dysfunction, fat diarrhea and other causes, can be relieved through dietary modification, medication and other ways. 1. Indigestion: when the patient indigestion, there will be eating greasy food diarrhea symptoms, at this time the patient can be improved through dietary modification, such as reducing the consumption of greasy food, eat more fruits and vegetables food. 2. Gastrointestinal dysfunction: the symptoms of diarrhea after eating greasy food may be caused by gastrointestinal dysfunction, probiotics can be used to regulate the intestinal flora, such as bifidobacteria, lactobacillus, bacillus subtilis and other intestinal bacterial agents, to alleviate the symptoms of diarrhea. 3. Fatty diarrhea: when the patient’s lipase activity is low, it may lead to the occurrence of fatty diarrhea, diarrhea after eating greasy food, the patient can use digestive enzyme preparations for treatment, such as multi enzyme tablets, lactasexan and so on. The above drugs should be used under the guidance of professional physicians. It is recommended to go to the hospital in time when the above situation occurs, and treat under the guidance of the doctor to avoid delaying the condition.