If a woman has stabbing pain in the urethra after urination, it is recommended to go to the hospital for urinalysis or ultrasound to further clarify the cause. 1. urinary tract infection, when acute urethritis cystitis occurs, it can cause erosion of the mucous membrane of the urethra and bladder, which can cause stabbing pain during urination or pain in the small abdomen when holding urine, and can be accompanied by symptoms such as urinary urgency and hematuria. 2, Bladder or urethral stones can show the performance of stinging pain after urination, which may be related to the mucous membrane of the urinary tract stimulated by the stay of stones or the mucous membrane irritation enhanced by the activity of stones during urination, resulting in local pain symptoms, and further ultrasound examination of the urinary system is needed to confirm the diagnosis. 3. The presence of occupying lesions of the urinary system, such as bladder tumors or bladder polyps, urethral tumors, urethral polyps and other changes, can The performance of stabbing pain after urination can also be accompanied by straining to urinate or changes such as hematuria in the flesh throughout the process, and cystoscopy is needed to further confirm the diagnosis if necessary.