Retaining the ovaries after a hysterectomy will also result in ovulation. After a hysterectomy a woman just can’t get pregnant, but it doesn’t affect the normal ovulation process. Whether or not the ovaries ovulate is independent of the presence of the uterus, and the ovulation process is only affected by changes in estrogen and progesterone levels in the body. Therefore, after hysterectomy, as long as one or both ovaries are preserved, ovulation will occur. Although there is no more menstrual flow and loss of reproductive function, it does not affect the sexual characteristics of the woman. Of all the methods for monitoring ovulation, the most accurate is the vaginal ultrasound monitoring method, which can not only measure whether there are dominant follicles in both ovaries, but also the size of the dominant follicles and the thickness of the endometrium. Therefore, after removal of the uterus, as long as the ovaries are preserved, there will still be normal secretion of female hormones and normal ovulation will exist.