If often appear before the examination diarrhea, diarrhea, most of the irritable bowel manifestation, and plant nerve dysfunction related. If often nervous, stress, often rest bad, repeated fatigue caused by vegetative nerve dysfunction, or gastrointestinal dysfunction, prone to excessive tension before the examination or diarrhea symptoms, this situation is mostly with their own emotional tension has a lot to do. Therefore, for this situation need to pay attention to relieve the pressure before the examination, pay more attention to appropriate relaxation, pay more attention to rest. A week or three days before the exam, pay more attention to appropriate outdoor activities, improve some nervousness. Positive preparation for the examination, adequate preparation for the examination, also has a great help to relieve tension, so there is no special treatment for diarrhea before the examination. If the number of diarrhea is more, you can give appropriate bifidobacterium capsule or montelukast to improve the symptoms, generally this symptom can be relieved after the examination. Usually pay more attention to rest, pay attention to drink more water, improve the usual state of mind, also has a great help to the examination.