Frequent nighttime urination may be caused by physiological factors such as emotional tension, drinking too much water, or it may be due to prostate hyperplasia, urethritis and other diseases. 1. Physiological factors: If you are too nervous before going to bed or drink a lot of water in a short period of time, it may lead to frequent night urination, which is normal. 2. Prostatic hyperplasia: prostatic hyperplasia patients will have frequent urination, urinary urgency, urinary symptoms, which will lead to a significant increase in nocturia, is a common disease in middle-aged and elderly men, the etiology of the disease has not been clearly defined, may be related to the role of androgens and their receptors, imbalance between cell proliferation and apoptosis. 3. Urethritis: Urethritis is mainly caused by pathogen infection, commonly gonococcal infection, the patient’s typical symptoms are frequent urination, painful urination, some patients will appear at night often get up at night to urinate. In addition, other urinary obstruction diseases, such as urethral stenosis, etc., can also lead to incomplete urination and increased nocturia. It is recommended that people with these conditions seek medical attention.