Frequent urination at night may be caused by a variety of reasons in women: 1, due to urinary tract infection, accompanied by painful urination, burning sensation during urination and other symptoms; 2, overactive bladder syndrome, which can lead to bladder function instability and instability of the detrusor muscle at night, resulting in symptoms of frequent urination; 3, caused by early nephritis, when the patient suffers from loss of kidney function, the kidneys have a weaker filtration capacity for the body. Damage to the glomerulus can lead to frequent urination at night, accompanied by other symptoms such as lumbago and back pain; 4. In addition to the above-mentioned reasons, drinking too much water before going to bed leads to more frequent urination at night. It is recommended to go to a regular hospital for examination to determine the specific reasons for the corresponding treatment, usually pay attention to a light diet, do not drink alcohol, do not have too much pressure.