The most unhealthy forms of contraception

　　1. Abstinence: 100% success rate
　　
The success rate is high, but all the fun is lost. This is the stupidest method and the most undesirable.

　　2. Menstrual contraception: success rate <30%

The simple fact is that ovulation can also occur during menstruation. Maybe most people don’t get pregnant during their period, but what if you’re one of the few? some female Ovulation is possible even during menstruation. And don't forget, sperm It can survive in the vagina for up to 8 days.

In addition to unintended pregnancy that may also occur during menstruation, refusal menopause There are several reasons for unprotected sex.

In addition to contraception, there are 3 reasons to refuse menstrual sex:

A. Hygiene issues. menstruation Uterus The exposed wound surface in the inner cavity, blood loss, and blood as culture medium. In such a vaginal environment, if there is unclean male Entering the genitals can easily cause local infection. Serious cases may result in Vaginitis symptoms or pelvic inflammatory disease disease.

B. Endometriosis. Another reason why experts disapprove of menstrual sex is that it increases the incidence of endometriosis. in addition, Ectopic pregnancy The incidence rate is also related to it.

C、 anemia possible. In addition, having sex during menstruation may increase a woman's bleeding, which increases the possibility of anemia. Moreover, if sexual intercourse is too vigorous, it may also cause abdominal pain. Therefore, unprotected sex during menstruation is the most unhealthy form of contraception.

　　3. Lactation period: success rate <90%

If you let your guard down because you're breastfeeding, you may be in for something you'll regret. According to surveys, 5%-10% of pregnant women become pregnant inexplicably while breastfeeding. After delivery, the baby's sucking nipple action can reflexively inhibit the mother's hypothalamus, thereby inhibiting ovarian ovulation. Taking advantage of this feature of non-ovulation can be used as a contraceptive. But this method is also unreliable.

Because if the baby sucks the nipple less, the amount of milk secretion decreases, the concentration of milk decreases, or breastfeeding stops, or if the mother is affected by the environment, climate, emotional changes, and sexual life, the inhibitory effect of lactogenic hormone on gonadotropin will weaken, and the ovary will resume its function from the resting state during breastfeeding, discharge mature eggs, and then gradually resume the menstrual cycle.

Breastfeeding mothers should know: Generally speaking, women ovulate first and then menstruate 2 weeks later. Due to the characteristic of "ovulation comes first and menstruation comes later", some women may become pregnant before their menstrual period comes.