Men with small stomach pain wanting to urinate, may be the result of urinary system infection, prostate hyperplasia, urinary system stones, urinary system tumors and other diseases. 1. Urinary system infections: common diseases include cystitis, urethritis, pyelonephritis, prostatitis, seminal vesiculitis, orchitis, etc., which may lead to the symptoms of men’s stomach pain and want to urinate. 2. Prostatic hyperplasia: due to the hyperplasia and hypertrophy of the gland, the urethra is squeezed, which leads to the pain in the stomach and want to urinate. 3. urinary stones: common kidney stones, ureteral stones, etc., due to changes in the location of the stones, stimulation of the urethra, can also cause men’s stomach pain and want to urinate. 4. Urinary system tumors: for example, benign prostate tumor, prostate cancer, urethral tumor, bladder cancer, etc., can also cause men to have pain in stomach and want to urinate. There may be other reasons for men to have pain in the stomach and want to urinate, so they need to go to the hospital for examination, clarify the cause of the disease, and follow the doctor’s instructions for treatment.