Diarrhea and yellow watery feces may be caused by acute gastroenteritis, inflammatory bowel disease, irritable bowel syndrome, etc., and need to be targeted treatment under the guidance of a doctor, such as drug treatment, surgical treatment, etc.. 1. Acute gastroenteritis: bacterial infection caused by acute gastroenteritis can use ciprofloxacin anti-infective treatment, diarrhea can be used in severe cases of diarrhea, such as montelukast for symptomatic antidiarrheal treatment of antidiarrheal drugs, if diarrhea leads to dehydration need oral or intravenous rehydration salts treatment. 2. Inflammatory bowel disease: Dexamethasone, prednisone and other glucocorticoids can be used to control the progression of inflammation, but also the use of mesalazine to treat mild to moderate active inflammatory bowel disease, if there are complications such as intestinal perforation, surgical treatment is needed. 3. Irritable bowel syndrome: irritable bowel patients are prone to diarrhea, abdominal pain and other manifestations of diarrhea, diarrhea can be used in severe antidiarrheal treatment of loperamide, abdominal pain can be used in severe scopolamine pain, there are difficult to alleviate the mental and psychological problems can be psychological counseling and other professional treatment. When diarrhea and yellow watery stools occur, it is recommended to go to the hospital for treatment under the guidance of a doctor.