If a woman has stinging pain and blood in the urethra when she urinates, it is recommended that she go to the hospital for a relevant examination to clarify the cause and then treat the problem. Firstly, acute urethritis or cystitis can cause congestion and bleeding in the mucous membrane of the urethra and bladder, which can lead to an obvious stinging sensation when urinating, and can be accompanied by hematuria or blood dripping from the urethra, so it is necessary to take the relevant urine for routine urine and urine culture tests, and give anti-infection treatment after diagnosis. Secondly, if there are stones in the urethra or bladder, stinging pain during urination and bleeding can also occur, and cystoscopy or urethroscopy is needed. Thirdly, tumors of the urinary tract, such as tumors of the urethra and bladder combined with infection, may cause stabbing pain and obvious hematuria, and CT examination of the urinary system is needed to further confirm the diagnosis of tumors of the relevant parts.