Urine with red sediment is generally a sign of hematuria, resulting in patients with hematuria discharge for a number of reasons, mainly including urinary tract infection, urinary tract tumors, urinary tract stones and so on. 1. Urinary tract infection: urinary tract infection is one of the common causes of hematuria, the mucous membrane of the urinary tract is damaged by bacterial infection, and it is easy to bleed under the flushing of urine, and it may be accompanied by other symptoms of urinary tract irritation, such as frequent urination. 2. Tumor of urinary tract: If the patient has a tumor growing in the urethra, there may be a history of spontaneous bleeding, and it is recommended that the patient improve the relevant imaging tests to confirm the diagnosis. 3. Urinary stones: stones most often occur in the ureter, patients most often have kidney pain while urinating blood. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.