Vaginitis does not usually cause delayed menstruation. It may be related to endocrine disorders, poor lifestyle habits, chronic stress or high work pressure. If a woman of childbearing age has delayed menstruation for more than a week, a blood HCG test should be performed to check for pregnancy. If pregnancy is not the cause of delayed menstruation, progesterone capsules can be taken orally to bring on the menstruation. Vaginitis is a frequently occurring gynecological disease that causes increased discharge or discomfort such as itching of the vulva or vagina, and a routine white belt examination should be performed at the hospital. According to the test results, the vaginal inflammation should be treated symptomatically. Women should pay attention to keep their vulva clean and hygienic, pay attention to the hygiene of menstruation and married life, and change their underwear regularly. Try not to eat spicy and stimulating food, and strengthen exercise to enhance the body’s resistance to disease.