Hidden pain in the left lower abdomen of the male stomach may be caused by intestinal flora disorders, inflammatory bowel disease, varicocele on the left side of the spermatic vein and other diseases, which can be targeted treatment under the guidance of the doctor, such as medication, surgical treatment and so on. 1. intestinal flora dysbiosis: need to maintain a good mood, can also use bifidobacteria, bacillus licheniformis and other probiotics treatment, with severe diarrhea symptoms can be used loperamide antidiarrheal, accompanied by constipation can be used to promote gastric dynamics of the drug such as domperidone, and Keserol and other laxatives. 2. Inflammatory bowel disease: mesalazine can be used to treat mild to moderate active inflammatory bowel disease, and glucocorticoids such as dexamethasone can also be used. 3. Varicose veins on the left side of the spermatic cord: Diosmin and other drugs can be used to treat varicose veins of the spermatic cord, ibuprofen can be used to relieve local pain, and surgery is needed if there is abnormal semen quality, infertility and other conditions. Male patients who have a vague pain in the left side of the lower abdomen are recommended to go to the hospital and ask the doctor to make a judgment.