Blood in the urine of women may be caused by a variety of reasons, such as infection, stones, tumors, etc. If the blood in the urine is caused by infection or stones and other lesions, it can be completely cured through regular medical treatment. However, if there is a tumor disease in the body that causes local mucosal destruction and bleeding, then it is a serious disease. Therefore, women with blood in the urine need to be examined in detail to distinguish whether it is a serious disease.1. If it is a urinary tract infection or stone, it can cause damage to the surrounding mucosa, resulting in local bleeding. If there are tumors in the urinary system, such as bladder cancer, ureteral cancer, kidney cancer, etc., which cause tissue destruction and bleeding, it is a serious disease. Because of malignant tumor of urinary system, there is no radical treatment yet. Through surgery or radiotherapy and chemotherapy, clinical remission can be achieved, but still it will bring threat to the life and health of patients.