If you are a male, consider if you have urinary tract disease, such as prostatitis, urethritis, cystitis, or rectal disease, such as proctitis, or excessive retention of stool in the rectum, or tumors of the bladder, prostate, urethra, or rectum. If it is a woman, there are more factors to consider. In addition to prostate disease in men, it can be caused by menstrual dysmenorrhea, and also consider uterine and adnexal diseases, such as cervicitis, adnexitis, pelvic inflammatory disease, and also vaginal diseases. If there are tumors in these areas, the same pain in the lower abdomen can occur. The main causes of abdominal pain vary by gender and age, and a detailed medical history is needed to facilitate the diagnosis.