Urine and a little blood, common in the following diseases: urinary tract infections, urinary tract tumors or urinary stones. 1. Urinary tract infection: women are prone to urinary tract infection, mainly due to the proliferation of various bacterial infections, resulting in congestion of the mucous membrane of the urinary tract, edema, and the emergence of urinary incontinence, the symptoms of blood in the urine. 2. Urinary system tumor: the tumor will invade the mucous membrane, or the tumor itself will bleed and stimulate the mucous membrane, which may show the symptoms of incomplete urination and blood in urine. 3. Urinary stones: when there are bladder stones or ureteral stones, they can stimulate the urethra to produce a feeling of incomplete urination, accompanied by pain in the abdomen, lumbago and other symptoms. Stones can cause localized mucosal bleeding, leading to hematuria during urination. There is no way to clarify the specific cause of the disease from the symptoms alone, and further examination is needed to confirm the diagnosis. It is recommended that patients go to the urology department for blood and urine routine, ultrasound, CT, cystoscopy and other related examinations to clarify the cause of the disease, and then choose the treatment according to the doctor’s guidance.