Men’s left lower abdominal pain may be strenuous exercise, gastrointestinal dysfunction, ulcerative colitis, acute gastroenteritis, ureteral stones and other reasons, need to take aspirin, domperidone and other drugs for the cause. 1. Strenuous exercise: sprinting, long jump and other strenuous exercise may lead to intestinal torsion or intestinal spasm and this symptom. When the pain is unbearable, you can take aspirin, ibuprofen and other non-steroidal anti-inflammatory drugs to relieve it. 2. Gastrointestinal dysfunction: overeating, stress and other factors lead to intestinal peristalsis, indigestion and symptoms. You can take domperidone, mosapride and other drugs to treat it. 3. Ulcerative colitis: non-specific inflammatory lesions of the colonic mucosa, ulcers and bleeding, resulting in pain in the left lower abdomen. It can be treated with medicines such as mesalazine, salazosulfapyridine, prednisone and tacrolimus. 4. Acute gastroenteritis: acute inflammatory lesions of the intestinal mucosa caused by bacterial, viral and other pathogen infections, so the symptoms appear. You can eat levofloxacin, azithromycin, ceftazidime and other anti-infection treatment, viral infection can eat oseltamivir, ganciclovir and other antiviral drugs treatment. 5. Ureteral stones: left lower ureteral stones stimulate the ureteral wall tissue caused by the left lower abdominal pain, you can take belladonna, scopolamine and other antispasmodic drugs. Care must be taken to ensure that the medication is administered under the supervision of a physician.