Abdominal pain with diarrhea may be caused by acute gastroenteritis, dysentery, ulcerative colitis, etc. Treatment can take intestinal mucosal protective agents (such as montelukast, etc.), probiotic preparations (such as Saccharomyces boulardii, bifidobacteria, etc.), aminosalicylic acid preparations (such as salicylates, etc.) for treatment. 1. Acute gastroenteritis: intestinal mucosal protective agents such as montelukast, probiotic preparations such as Saccharomyces boulardii and Bifidobacterium bifidum, and antidiarrheal drugs such as loperamide can be used. 2. Dysentery: treatment can take aminosalicylic acid preparations such as lauzasulfapyridine, anticholinergic drugs such as atropine, microecological preparations such as bifidobacteria triple capsules. 3. Ulcerative colitis: aminosalicylic acid preparations such as lauzasulfapyridine and glucocorticosteroids such as hydrocortisone are commonly used in the treatment. The above drugs should be used under the guidance of a physician, not blindly self-medication. Abdominal pain accompanied by diarrhea may have other causes, you need to go to the hospital in a timely manner, under the guidance of a professional physician for treatment, so as not to delay the condition.