Tummy bulging lower right abdominal pain may be gastrointestinal dysfunction, ulcerative colitis, appendicitis and other disease factors, need to be under the guidance of the doctor for targeted treatment, such as general treatment, drug treatment, surgical treatment and so on. 1. Gastrointestinal dysfunction: there may be abdominal distension, abdominal pain and other symptoms. It can be treated with drugs such as domperidone and mosapride to promote gastrointestinal motility. 2. Ulcerative colitis: there may be abdominal distension, right lower abdominal pain symptoms, diarrhea and other symptoms. It can be treated with aminosalicylic acid preparations (Liuzasulfapyridine, etc.), glucocorticosteroids (such as prednisone), and so on. 3. Appendicitis: When acute cases are diagnosed, priority should be given to early surgical removal of the appendix to avoid progression to appendiceal suppuration and perforation, and at the same time, antibiotics such as gentamicin and metronidazole can be used for treatment, and surgical preparations such as fasting and gastrointestinal decompression can be made. If it progresses to chronic appendicitis, surgical treatment can be taken electively in the interstitial period. The appearance of stomach bulging right lower abdominal pain is recommended to go to the hospital, please doctor’s judgment, give treatment plan.