When menstruation comes once in half a month, consider ovulatory bleeding, anovulatory abnormal uterine bleeding and ovulatory abnormal uterine bleeding.
1. Ovulatory bleeding: When women are ovulating, due to insufficient corpus luteum function or decreased levels of progesterone, a small amount of endometrial shedding will occur, which some people mistake for menstruation.
2. Anovulatory Abnormal Uterine Bleeding: This condition is common in adolescent women and women in the transition period of menopause. In adolescence, the immaturity of the feedback regulation of the hormones of the hypothalamic-pituitary-ovarian axis will cause menstrual disorders, and in the transition period of menopause, due to the continuous decline of the ovarian function, the follicles are close to depletion, and fluctuating changes in the level of oestrogen will also occur.
3. Ovulatory Abnormal Uterine Bleeding: This condition is commonly associated with insufficient luteal function and premature luteal failure, and may also be caused by localized abnormalities of the endometrium, such as endometrial polyps and uterine fibroids.
If you have your period once every half a month, there may be other reasons, so it is recommended that you go to the hospital in time to get a clear picture of the cause and standardize your treatment.