The common causes of frequent urination in diabetic patients are poor glycemic control, urinary tract infection, prostatic hyperplasia, etc. It is necessary to carry out anti-infection and improvement of prostatic hyperplasia and other treatments according to the etiologic factors while controlling blood glucose in order to alleviate the symptoms of frequent urination. 1. Poor glycemic control: diabetic patients in poor glycemic control, excessive glucose osmotic diuresis leading to frequent urination, often in blood sugar reduction after the symptoms are relieved. Control of blood sugar can be applied oral hypoglycemic drugs (such as acarbose, metformin, etc.) or insulin, etc.. 2. Urinary tract infection: diabetic patients have poor immunity, high blood sugar leads to high glucose, glucose is a good culture medium for bacteria, so diabetic patients are prone to urinary tract infections, which leads to frequent urination, need to choose antibiotics such as levofloxacin anti-infective treatment after drug sensitivity test, and at the same time, choose oral hypoglycemic drugs or insulin to reduce glucose. 3. Prostatic hyperplasia: Elderly men with diabetes may have prostatic hyperplasia leading to frequent urination, which can be treated with drugs or surgery. Commonly used drugs are doxazosin mesylate, finasteride and so on. It is recommended that diabetic patients find frequent urination to actively seek medical attention, a clear diagnosis, and timely treatment under the guidance of the doctor to avoid delays in the condition.