If you often have diarrhea and diarrhea before exams, most of them are manifestations of irritable bowel and are related to phytodysfunction. If often nervous, stressful, often poor rest, repeated exertion caused by the dysfunction of plant nerves, or gastrointestinal dysfunction, easy to appear before the examination excessive tension or diarrhea symptoms, this situation is mostly related to their emotional tension. So, for this situation, you need to pay attention to relieve the pressure before the exam, pay more attention to proper relaxation and pay more attention to rest. About a week or three days before the exam, pay more attention to appropriate outdoor activities to improve some nervousness. Active preparation for the exam and adequate preparation for the exam also help a lot to relieve tension, so there is no special treatment for diarrhea before the exam. If the number of diarrhea is more, you can give appropriate bifidobacterium capsules or montelukast to improve the symptoms, generally this symptom can be basically more relieved after the examination. Usually pay more attention to rest, pay attention to drink more water, and improve the usual state of mind, which is also very helpful for the examination.