If a woman has pain in her stomach when going to the toilet, it is recommended to go to the hospital for examination to clarify the possible causes. 1. Acute urethritis or cystitis can cause pain in the stomach when urinating, accompanied by symptoms of frequent urination, urinary urgency or a feeling of incomplete urination, and serious patients may also have blood in the eyes. 2. It is recommended to go to the hospital for urinalysis to clarify the presence of infection.2. Bladder or urethral stones can cause pain in the small abdomen when urinating, which can be accompanied by interruption of urination or blood in the eyes, and requires ultrasound examination of the urinary tract to further rule out the presence of stones.3. Bladder tumors can also cause pain in the small abdomen when urinating, especially when the tumor is large and causes damage to the bladder mucosa or base. The pain is more obvious when the tumor is larger and causes damage to the mucosa or base of the bladder, and may be accompanied by painless hematuria in the early stage. Patients are recommended to undergo ultrasound or cystoscopy of the urinary system to further confirm the diagnosis.