Frequent trips to the toilet may be a physiological phenomenon, or it may be caused by diseases such as urethritis, pyelonephritis, diabetes, and so on. 1. Physiological phenomena: frequent visits to the toilet may be caused by physiological phenomena such as drinking too much water, lowered temperature, and excessive mental stress. 2. Urethritis: this disease is mainly caused by gonococcus, Chlamydia trachomatis, mycoplasma, herpes simplex virus and other pathogenic microorganisms infection, can be transmitted through sexual contact, the patient will have frequent urination, painful urination, urethral itching and other symptoms. 3. Pyelonephritis: the main pathogen of the disease is bacteria, which can be infected through the urethra upstream to the kidneys, common predisposing factors urethral obstruction, pregnancy, invasive operation of the urinary tract, ureteral malformation and so on. Typical symptoms are frequent urination, fever, urinary pain, urinary urgency, etc., so the patient exists to go to the toilet more often. 4. Diabetes mellitus: the cause of this disease is not yet clear, research shows that it is the result of a combination of genetic and environmental factors, and may also be related to autoimmune system defects. With the development of the disease, patients will have the typical symptoms of “three more and one less”, i.e. more drinking, more eating, more urination, weight loss, etc., which can be manifested as frequent urination. 5. Other: In addition, we also need to consider the hyperthyroidism, prostate hyperplasia, urinary tract stones and other diseases. If the frequency of urination is excluded as a physiological phenomenon, the patient needs to go to the hospital in time to clarify the specific cause of the disease.