If a woman does not get her period, she will have the following hazards: 1. If she does not get her period because of premature ovarian failure, she will have hot flashes and sweating, emotional changes, insomnia and dreaminess, and will have osteoporosis or an increased chance of cardiovascular disease. 2. 3. If the absence of menstruation occurs after menopause, it is a normal physiological phenomenon, mainly because the ovaries no longer secrete estrogen and progesterone periodically due to the decline of ovarian function, so there will be no more menstruation. This is a normal physiological phenomenon and will not cause any harm to the body, as long as attention is paid to the prevention of osteoporosis and cardiovascular disease.