Hematuria on dialysis may be related to hemolysis, drugs, urinary infection and other reasons. 1. Hemolysis: For example, hemolytic reaction caused by wrong use of dialysis solution or wrong return of venous blood due to operation error, etc. Hematuria, high fever, chills, shortness of breath and other symptoms may appear, and cardiac and respiratory arrest may occur in severe cases. 2. Drugs: For example, if patients use immunosuppressants such as cyclosporine before dialysis, hematuria and other discomforts may also occur. 3. Urinary infection: dialysis patients combined with pyelonephritis, etc., may appear high fever, chills, hematuria and other symptoms, serious cases of hemorrhagic infectious shock. There are many other causes of hematuria in dialysis, it is recommended to go to the hospital in time, under the guidance of the doctor for treatment, to avoid blindly using medication and treatment on their own.