Uterine amenorrhea

The endometrium is periodically changed by the stimulation of sex hormones secreted by the ovary. When the endometrium is peeled off, there will be menstrual cramps. Therefore, in cases of congenital absence of uterine or uterine dysplasia, endometrial damage or hysterectomy, Even if the ovarian function is sound and the secretion of sex hormones is normal, there is no menstrual cramps. The cause of this amenorrhea is in the uterus, so it is also called uterine amenorrhea.