There are many reasons for mild pain in the abdomen, including intestinal spasm, chronic appendicitis, colon cancer, and gynecological diseases such as tubal inflammation, pelvic inflammatory disease, and uterine fibroids in female patients. Intestinal spasms are caused by the different peristaltic movements of the intestines, such as after the abdomen is cold or after eating fatty food, which can lead to increased peristaltic movements and mild, paroxysmal pain in the small abdomen. Chronic appendicitis can also cause pain in the lower abdomen, mainly in the right lower abdomen and sometimes in the middle and lower abdomen, and may have a history of acute appendicitis or a stiff appendix. Colon tumors may also cause vague abdominal pain accompanied by increased frequency of stools, blood in stools, black stools, etc. If necessary, colonoscopy will be performed for diagnosis and surgery will be required after clarification. Gynecological diseases such as pelvic inflammatory disease and tubal inflammatory disease require abdominal ultrasound and oral antibiotic treatment after a clear diagnosis. Lower abdominal pain caused by fibroids is determined by the size of the fibroids. If the fibroids are small and the menstrual flow is small, conservative treatment can be performed.