A layer of white floaters on top of the urine may be a physiological phenomenon, or it may be caused by diabetes, or impaired kidney function, as well as urinary tract infections. 1. Physiological phenomenon: if you take too sweet food, take too greasy products, or excessive alcohol abuse, etc., may cause a transient urine above a layer of white floats of symptoms. 2. Diabetes mellitus: a disorder of glucose metabolism may cause too much glucose in the urine, which can also cause a layer of white floats above the urine. 3. impaired kidney function: for example, chronic glomerulonephritis, pyelonephritis and other diseases affecting the function of the kidneys can cause proteinuria, which may cause a layer of white floaters on the urine. 4. Urinary system infection: cystitis, urethritis, pyelonephritis and other diseases, can cause abnormal urethral secretions, urinary frequency and urgency and other symptoms, may also lead to a white float on the top of the urine. A white float on top of the urine, there may be other reasons, you need to go to the hospital in time to check, follow the doctor’s instructions for treatment.