Frequent urination is relieved during menstruation is considered to be related to premenstrual syndrome. In the premenstrual period due to changes in the level of estrogen and progesterone in the body, the pelvic organs are congested and edema is obvious, stimulation of the bladder may cause frequent urination, with the onset of menstruation, these symptoms can generally improve on their own without special treatment, can be appropriate to drink more water. For women who urinate frequently, we should also be alert to the occurrence of urinary tract infection, the symptoms of frequent urination can not be improved by themselves, and will be accompanied by urinary urgency, urinary pain, burning urethra and other discomfort, it is recommended that the patient go to the regular hospital as early as possible to improve the urine routine and other tests, and comply with the doctor’s orders to use levofloxacin, cephalosporin and other antibiotics to actively anti-infective treatment, in order to avoid affecting the quality of life.