Frequent urination at night may be caused by physiological factors, overactive bladder, prostate hyperplasia, diabetes, urinary tract infections and other factors. 1. Physiological factors: such as drinking too much water before going to bed at night or the existence of mental urinary frequency, can lead to frequent urination at night, eliminate the above triggers can be recovered on their own, do not need to carry out other treatments. 2. Overactive bladder syndrome: it may be related to autonomic dysfunction, low estrogen level and other factors, which can lead to abnormal bladder function, making the bladder function unstable, and then frequent urination at night, and in severe cases, urge incontinence may also occur. 3. Prostatic hyperplasia: a benign lesion, when the gland gradually increases in size, it may cause irritation to the bladder, which may lead to frequent urination at night, accompanied by difficulty in urination, weakness of urination and other symptoms. 4. Diabetes: It may be related to heredity, poor dietary habits and other factors, which will lead to abnormal glucose metabolism in the body, and may cause frequent urination at night, accompanied by excessive drinking, fatigue and other symptoms. 5. Urinary tract infection: If there is a urinary tract infection, you may not be able to sleep because of abdominal pain and discomfort, accompanied by symptoms of increased urination. To summarize, frequent urination at night, accompanied by other abnormal manifestations, it is recommended to consult a doctor for appropriate examination and treatment, to avoid delaying the condition.