Causes of excessive urination at night in women are: 1, chronic urethritis, cystitis, bladder tuberculosis and other infectious diseases; 2, adenoidal cystitis, bladder stones, tumors in the bladder triangle, etc., causing constant symptoms of irritation in the bladder triangle; 3, neurogenic bladder patients due to the presence of residual urine, manifested as frequent and incomplete urination, especially at night when the symptoms are more pronounced; 4, diabetic patients with blood sugar, urine sugar excessive high caused by osmotic diuretic effect; 5, psychogenic factors, seen in patients with mental tension, anxiety disorders, neurasthenia, mostly in young and middle-aged women; 6, physiological conditions may be caused by excessive evening drinking, eating too much sweet food.