If women have blood when urinating, it is recommended to go to the hospital for examination, the possible causes are as follows: 1, urethral meatus, meatus long-term presence of combined infection can cause bleeding, which is mainly manifested as the initial meatus hematuria or accompanied by blood dripping from the urethra, and can be accompanied by pain in the urethra, need to conduct urinalysis and physical examination to further clarify; 2, acute infection of the urinary tract, such as acute 2. Acute infections of the urinary tract, such as acute cystitis and acute urethritis, can cause the phenomenon of bleeding from urination. This kind of bleeding is usually accompanied by symptoms of urinary frequency, urinary urgency or painful urination; 3, urinary tract stones, such as kidney stones and ureteral stones, can appear bleeding in urination. At the same time, it will be accompanied by frequent urination, urinary urgency, painful urination, back pain or increased body temperature and other changes, which need to be further clarified by urine culture test. When the tumor is large, chronic pain can occur, which is often seen in elderly patients, and needs to be further ruled out by CT and ultrasound examination of the urinary system.