Clinically, urinary frequency is divided into physiological frequency and pathological frequency. Frequent urination refers to the increase in the number of times the patient urinates per unit of time, but the volume of urine decreases. Normal people urinate 4~8 times a day, usually 4~6 times during the day and 0~2 times at night. Clinically, urinary frequency is usually divided into physiological frequency and pathological frequency according to the cause of the disease. Physiological frequency of urination refers to the increase in the frequency of urination due to mental, climatic, drinking water and other reasons. The body does not have any organic lesions, no urinary urgency, urinary pain and other symptoms. Pathological urinary frequency can be divided into polyuria frequency, inflammatory urinary frequency, neurogenic urinary frequency, reduced bladder capacity urinary frequency, urinary frequency caused by periurethral lesions and so on. If there are symptoms of urinary frequency, it is recommended to go to the regular hospital in time.