Eating greasy things on diarrhea may be related to intestinal dysfunction, can be treated by adjusting the diet, medication and other methods. 1. Regulate diet: usually pay attention to light diet, eat less greasy, fried, cold, spicy and other stimulating foods. Pay attention to the combination of work and rest, do not often stay up late, to appropriate physical exercise, improve physical fitness, can be a certain degree of relief to eat greasy things diarrhea. 2. Medication: patients with serious conditions can take medication for treatment, such as montelukast, bifidobacteria and other drugs. The above drugs are prohibited for those who are allergic to them and should be taken in accordance with medical advice. If patients often have diarrhea when eating greasy things, it is recommended to go to the regular hospital in time, after the cause of the disease is clear, under the guidance of the doctor for targeted treatment.