If a woman has urethral bleeding, the possible causes are: 1. The presence of stones in the urinary system, which irritate the mucous membrane and cause local ulceration and hematuria. This is accompanied by frequent, urgent and painful urination, or pain in the lower back and abdomen. If you have sudden pain in the lower back and abdomen with hematuria, you should consider urinary stones, and you need an ultrasound examination of the urinary system to confirm the diagnosis. 2. If an elderly woman has urinary bleeding during urination, you should consider the possibility of urinary tumors. The typical feature of hematuria in urological tumor is painless hematuria, and there is usually no pain during the process of hematuria. However, when the tumor increases in size and causes local compression or invasion of surrounding tissues, pain in the invaded tissues may occur. 3. Urinary tract infections may also show urethral bleeding, and their hematuria is mostly accompanied by urinary frequency, urinary urgency, painful urination and other urinary tract irritation symptoms. The urethral bleeding can occur when the area rides across a hard object, or when violence hits the pelvis and urethra directly. However, this condition usually has a very clear history of trauma, such as a fall, fall, etc.