Menstruation comes back half a month after being clean may be caused by ovulation bleeding, taking emergency contraceptive pills, luteal insufficiency or other factors.
1. Ovulation bleeding. Menstruation after half a month clean and come again, such as just a small amount of vaginal bleeding is likely to be the body after ovulation estrogen levels drop, resulting in part of the uterine lining shedding and ovulation caused by bleeding, generally small amount, lasts for 2 ~ 3 days to disappear on their own, do not need to be treated.
2. Taking emergency contraceptive pills. If a woman has taken emergency contraceptive pills after menstruation, the emergency contraceptive pills may lead to a short period of elevated levels of hormones in the body, and after stopping the hormone levels fall and cause withdrawal bleeding, may also cause menstruation to be clean for half a month and then bleed again, usually lasts for 3~5 days, and does not need any special treatment for a small amount of time.
3. Luteal insufficiency. After ovulation, the corpus luteum is formed, and the corpus luteum secretes estrogen and progesterone to maintain the growth of the uterine lining. If the corpus luteum is not functioning properly, the estrogen and progesterone will be reduced, which will lead to shortening of the menstrual period and more frequent menstruation. Can be combined with sex hormone six test, follow the doctor’s instructions to take progesterone or dydrogesterone tablets to regulate.
4. Other factors. Half a month after the menstrual period is clean, irregular bleeding may also be caused by cervical diseases, endometrial polyps or fibroids, ring stimulation and other causes of irregular bleeding, to clarify the cause of bleeding and the specific location of the symptomatic treatment.