According to statistics, about 30% of women have had at least one abortion. That means that 3 out of 10 women have had an abortion in their lifetime, which is a significant percentage. What is the correct method of contraception? Which of the circulating contraceptive methods are not reliable? A, unreliable contraceptive methods 1, unreliable one: the safety period The so-called safety period, non-ovulatory period. Ovulation is regulated, there is a cycle rule to follow, generally 14 days before the onset of menstruation ovulation, if not ovulation intercourse, it seems that should not be pregnant. The control of the ovaries is not like the control of the Jiuquan satellite launch center for the rocket launch, not a minute too soon, who knows when the hypothalamus and pituitary gland will be happy and send a message to the ovaries to ovulate early or postpone ovulation, they will not inform you. The actual fact is that the eggs will not be absorbed immediately after they are discharged, there will be a waiting time, and the sperm will not flow out immediately, they will also wait. If you have to wait three or two times, maybe both sides will wait, and your contraception will fail. For those who have irregular menstrual cycles, not to mention the safety period. So, the safe period is not safe. In the eyes of obstetricians and gynecologists, if you say that the contraceptive method is safe period contraception, that is basically about the same as not contraception. 2, unreliable two: the emergency contraceptive pill is also a contraceptive pill, you can see clearly, this and the short-acting contraceptive pill can be a big difference. Short-acting contraceptive pills, is a daily oral, continuous 21 days for a cycle, common on the market, such as MaFuLong, YouShiMing, MinDing even, DaYing-35. and emergency contraceptive pills is after sex, a one-time take, common on the market, such as Yuting, Antin, Mifepristone. The oral emergency contraceptive pill is a method that is only suitable for conventional contraceptive failure (e.g. condom dislodgement), or unwanted unprotected sex (e.g. rape), but not for conventional contraception. This method is not only a high rate of contraceptive failure, but also, because the emergency contraceptive pill is usually a large dose, so the side effects are more obvious, the adverse effects on menstruation is also relatively large, often can cause several months of continuous menstrual disorders. 3, unreliable three: in vitro ejaculation This is not much to say, you think not shot in the vagina can be contraceptive? You just don’t see the sperm going in, you underestimate the ability of the sperm to swim. In the eyes of a doctor, in vitro ejaculation is also approximately the same as no contraception. Second, here are a few reliable contraceptive methods 1, ligation The method of ligation is to cut off the fallopian tubes, the corridors that connect the two sides of the palace of the uterus, as mentioned earlier. These two corridors are very important, is the way to transport the fertilized egg, if they are cut off, then the fertilized egg will not be able to enter the palace, it will not be able to bed, naturally will not be pregnant. It is very painful to cut off the two tubes, but if you regret later and want to get pregnant, it will be a lot of trouble to connect the two disconnected fallopian tubes back again. 2, short-acting contraceptive pills and short-acting contraceptive pills are also through the estrogen and progestin, the body’s endocrine regulation, to inhibit ovulation. The Chinese people are surprisingly afraid of the word hormone, as long as something is hormonal, it is basically to be strictly guarded – I just want to avoid a pregnancy, how to take hormones ah? In fact, short-acting contraceptives are not that scary. Because the types and doses of hormones in short-acting contraceptives are strictly controlled and regulated, they are basically safe from the perspective of thousands of users. In fact, it’s the various so-called skin care products mixed with estrogen that are more worrying, because you don’t know what it uses and how much it uses. So hormones are not scary, it’s the unexplained and confusing use of hormones that is scary. Likewise, short-acting contraceptives have been treated unfairly in this country. In fact, because of its profound internal strength, the short-acting pill has excellent contraceptive effects, with a success rate of 99%, an effect comparable to tubal ligation. In addition, it also has some other additional benefits, such as the aforementioned relief of dysmenorrhea and regularization of menstrual cycle, so many clinical treatments for menstrual disorders are also using oral short-acting contraceptives. In addition to this, it can also reduce the incidence of ovarian and endometrial cancer, pelvic chlamydia infection as well as tubal inflammation. Short-acting contraceptives have been well proven to be safe and effective for use by most healthy women. However, there is a risk of blood clots with the use of short-acting contraceptives, but we yellow people have a lower risk of forming blood clots than Caucasians, and it is still safe if we just take it for a year and a half and are able to have regular medical checkups. Please use it under the guidance of your doctor or pharmacist. It still has a shortcoming that the application is troublesome. A cycle of 21 days, you need to insist on taking the pill on time every day, and if you miss a dose, you need to follow the instructions to make up for it, otherwise it will affect the effect of contraception. However, just like brushing your teeth, although it is also necessary to insist on doing it every day, as long as you form a habit, you will not find it troublesome. As for the claim that many people worry that short-acting contraceptives will increase their weight, studies have actually shown that there is no correlation between short-acting contraceptives and weight gain. Moreover, the new generation of progestin drospirenone also has the effect of anti-salt corticosteroids, which can reduce water and sodium retention in the body and can slightly reduce weight. 3, intrauterine device The intrauterine device has a similar effect, and is a device placed in the uterus, thus interfering with implantation, and the contraceptive effect is also ideal. Moreover, compared with the poor reversibility of ligation, the reversibility of IUD is much better, and the reproductive function can be restored soon after removal, and the surgical operation of placement and removal is easy. However, there is a risk of bleeding, infection, and uterine perforation during the placement procedure, but the probability is low, and the main problems are after placement: a few people may experience back pain, abdominal pain, abnormal menstruation, and other discomforts after IUD placement; some people may become pregnant after IUD placement and have an ectopic pregnancy; some people may have the IUD gradually fuse with the uterine wall and grow into the uterus. The IUD may gradually fuse with the uterine wall and grow into the myometrium, which is medically known as IUD imbedding, causing a lot of trouble when removing it. 4, condoms sperm is isolated, can not meet with the egg, also achieved the effect of contraception. I believe that most people who have a little knowledge of contraception, awareness is also stuck at the level of condoms; however, there is awareness of contraception, know that the use of condoms is also good. Condoms also have some additional benefits, most notably the prevention of sexually transmitted diseases. Because the vast majority of cervical cancer is related to HPV infection, which can also be sexually transmitted, condom use can also reduce the incidence of cervical cancer. However, it should be emphasized that condoms have the lowest contraceptive success rate of the four contraceptive methods described here, and are closely related to the correct method of use.