There are mainly the following reasons for hard cervix: 1, physiological: such as menopause or postmenopausal women, due to lack of estrogen, older, human aging leads to hardening of the cervix, the fibrous tissue of the elastic cervix decreases and gradually hardens, which is a physiological phenomenon and is generally not a problem; 2, pathological: hardening of the cervix in women of childbearing age generally has chronic inflammatory conditions, such as chronic cervicitis, long-term inflammatory stimulation, cervical nuchal fibrous connective tissue hyperplasia, etc., need to do cervical uterine surgery to soften the cervix. If you want to give birth, such as at the end of pregnancy to give birth, when the opening of the uterus cannot be opened due to the hard cervix, you need to soften the cervix, such as posterior vaginal fornix, small doses of spot oxytocin, to increase the maturation and softening of the cervix; 3. Congenital: such as congenital cervical dysplasia, cervical dysplasia.