The urine is milky white, possible causes: 1, purulent urinary tract infection, such as kidney abscess, pyelonephritis, purulent urethritis, cystitis, etc. can cause the urine is milky white, because there is a large amount of pus in the urine, at the same time can be accompanied by obvious symptoms of urinary tract irritation or accompanied by an increase in body temperature, can appear to have frequent urination, urinary urgency, lumbago, urinary incomplete feeling, urine laboratory tests can be seen a large number of 2. Crystalluria, which tends to appear more easily in cold weather. This is because the temperature drops, the electrolytes or some crystalline components in the urine are more likely to precipitate out and form crystals, which can cause the urine to become white, usually without any conscious symptoms, and can disappear on its own after drinking more water. 3, celiac disease, because the lymphatic fluid into the urinary system, which causes a large amount of lymphatic fluid mixed in the urine, so the performance of the urine milky white, generally seen in filariasis caused by lymphatic vessels It is usually caused by the blockage of lymphatic vessels due to filariasis.