Small stomach pain and frequent urination, it is recommended to go to the hospital for relevant examinations to further clarify the possible causes: First, acute cystitis can cause the above symptoms, and may be accompanied by urinary pain or with the feeling of incomplete urination, serious patients may be accompanied by the phenomenon of bleeding in the urine, it is recommended to go to the hospital to conduct a urinalysis to rule out the presence of infection. Second, the end of the ureter or bladder stones, can cause pain in the abdomen with frequent urination symptoms, especially the end of the ureter stones, can cause bladder irritation symptoms. At the same time, it can be accompanied by the patient’s urinary symptoms, need to carry out ultrasound examination of the urinary system to rule out the existence of stones. Thirdly, tumor of urinary tract is common in elderly patients, when there is tumor of urinary tract, it can cause bladder irritation, so patients always feel frequent urination. Tumor volume further increases, destroying the normal mucosal tissue, which can produce the symptoms of abdominal pain, usually accompanied by hematuria, need to carry out cystoscopy or CT examination of the urinary system to confirm the diagnosis.