The hidden pain in the stomach and diarrhea is considered to be caused by improper diet, enteritis, intestinal cancer and other reasons. Generally use the life conditioning and drug treatment. 1. Improper diet: Eating too much cold and greasy food may lead to accelerated gastrointestinal peristalsis and intestinal spasm, which may cause vague pain and diarrhea. Pay attention to the abdomen to keep warm, do not eat raw and cold, fried, barbecue and other food to increase the burden on the stomach and intestines, but also to drink more water. 2. Intestinal diseases: enteritis, intestinal cancer and other intestinal diseases may lead to intestinal mucosal damage and symptoms of vague pain and diarrhea. Those with enteritis can take Montelukast, Norfloxacin and other medications; those with severe pain can take belladonna tablets, scopolamine tablets and other medications; those with intestinal cancer need to undergo tumor resection. 3. Cold abdomen: Cold abdomen will cause hidden pain with diarrhea, so you should pay attention to keep the abdomen warm, add clothes and local hot compresses. There may be other reasons for the vague pain in the stomach and diarrhea, it is recommended to go to the hospital, blood test, stool routine, gastroenteroscopy, etc., to make a clear diagnosis and symptomatic treatment.