What women must know about contraception

　　Secret 1: Weight plays a role

　　Between 18-39 years old female , if the weight is equal to or greater than 58 kilograms, oral contraceptive pills are 60% likely to fail, especially those with low estrogen levels. Women who are overweight have a faster metabolism and require more hormones to prevent conception. Moreover, birth control pills have a fat-dissolving effect and may "stay" in the places where fat is stored in the body, unable to reach the bloodstream where they should be to actually take effect. If you weigh more than 58 kilograms, it is best to ask your doctor to recommend other more reliable methods, such as intrauterine devices, or a combination of birth control pills and condoms to ensure that everything is foolproof.

　　Secret 2: What lasts is the most effective!

　　In fact, there are many very effective contraceptive methods that you are not aware of, have never imagined, and are not recommended to you. Curious? The intrauterine device (IUD) is one example. This is placement Uterus The small T-shaped contraceptive device inside is made of flexible soft plastic and must be inserted into your body by a doctor. After that, even if the egg has been fertilized, it will not implant and grow in the uterus. As long as there are no abnormalities, it can be left alone for one or two years. It will not cause trouble to sex, which is very convenient.

　　Generally speaking, today's IUDs are quite safe. Only one brand called "Dalkson Shield" once had deviations and "disappeared" from the market in the 1970s, but it still affected the reputation of IUDs to some extent. Although it is quite common in other countries, less than 1% of women choose to use it. This situation is not optimistic, because for monogamous families, although IUD cannot guarantee that you will not contract sexually transmitted diseases, it is indeed the most effective contraceptive method. Once inserted, you can forget about its existence. Not only does it have no hormonal side effects that other contraceptive pills may cause, but it is also extremely effective - with only a 1% failure rate per year.

　　There are two types of IUDs, the latest being Mirena. As we know, male More than 100 million ejaculated semen sperm , this mighty army scrambles to swim in the female reproductive tract, able to swim 2-3 millimeters per minute. After passing through the four major barriers of the vagina, cervix, uterine cavity and fallopian tube, it dates with the egg. The principle of Mirena is to release gestin into the uterus, which thickens the cervical mucus, making it difficult for sperm to penetrate the mucus and continue to ascend into the uterine cavity to meet the egg. It can stay in the human body for at least 5 years.

　　Another type is Paracard, made of copper. The sperm army does not care about the long distance, and after a week of taking the contraceptive pill, it starts to take effect. It swings its tail forward, and the oncoming force can be described as menacing. Many sperm surround an egg, digest its peripheral zona pellucida, break through the cells surrounding the egg, dissolve the acid between the cells, and open the way for the next sperm. The entire process of combining the sperm with the egg cell is fertilization.

　　Paracard's strategy is to try to weaken the sperm's motility and protect the eggs from fertilization. It can be left in the body for at least 10 years. After removal, fertility returns to normal. If there is any flaw, it is that the uterus of women who have never given birth is not soft, it is difficult to place it, and there is occasional pain, but only in the first few months. Also, during menstruation, the pain in the lower abdomen and waist may be slightly more severe than before. If you have a regular sexual partner and the other person does not sexually transmitted diseases History, IUD is undoubtedly the ideal choice. However, the best IUD may have problems due to incorrect placement or Gynecology disease , will also fail. Women with a pelvic history are not advised to use an IUD as it may worsen bacterial infections.

　　Other unsuitable groups: those with extreme uterine retroflexion, endometritis, salpingitis, Vaginitis , uterine fibroids and other gynecological diseases； Those with excessive menstrual flow and secretions. Correct operation: Check with a doctor → Determine whether it is suitable → Choose a shape → Choose a time (a few days after menstruation, no more than a week at the latest) → Ask a doctor to operate → Check once a year.

　　Secret 3: The unknown hidden dangers of condoms

　　Most condoms are made with spermicidal nonnoxynol-9, which is not only ineffective in preventing STIs, but may increase the risk of contracting AIDS and other sexually transmitted diseases. Its working principle is to achieve the purpose of contraception by destroying the membrane of sperm cells. In the process, the protective membrane on the edge of the vagina may also be destroyed. The U.S. Drug Administration believes that the risk of contracting sexually transmitted diseases when using condoms increases due to cell damage, and is considering putting a warning label on finished products that contain spermicidal ingredients.

　　Use it properly to avoid future troubles: pinch the small pocket at the top with your fingertips to remove the air inside. If there is air remaining, the top will bulge and may fall off midway. Put it on the erect genitals, open the curled part in circles, do not entangle the pubic hair, and do not have wrinkles. It’s better if you put it on from the beginning of intercourse. Pay attention to how you handle it after use. When pulling out, hold the root and pull it out slowly, otherwise it may fall off in the vagina. If you do not leave the body for a while after ejaculation, the male genitals will shrink and there is a risk of semen leaking out.

　　Secret 4: Birth control pills must be used correctly to be effective

　　The principle of oral contraceptives is to artificially create a pregnancy-like state by taking sex hormones and inhibit ovulation. If used correctly, it is a contraceptive product that can achieve excellent contraceptive effects. It is characterized by reliable effect and easy use. However, because it contains estrogen, it should be examined and judged by a doctor before taking it. When you start taking it, you don't have to wait a whole month for the effects to start, and it doesn't have to start on a Sunday. Perhaps many people have heard that the most magical number is 7 days, but this is pure fiction! After taking the medicine for a week, you need to take some auxiliary measures (such as condoms).

　　Hormones are very effective in preventing ovulation. After that, you can be busy having fun without worrying about "fish slipping through the net". Of course, don't forget that the prerequisite is that neither you nor he has a history of sexually transmitted diseases. No matter what precautions are marked on the medicine package, you can start taking it on any day of the week. The key is to ensure that the number of days is correct and you do not miss a dose. The statement that it must start on Sunday is medically untenable. If such a statement is made, it is only to prevent women from not having their period on the weekend. If you are already taking medication but want to adjust the start date, what is the safest way to do it? “"Relaxation pills" will cause menopause. Don't count on a Sunday to start another cycle. You can take them earlier, any day, if you want. Most of the reasons for its failure are forgetting to take it.

　　Remember: the effectiveness of a pill only lasts for 24 hours, and the effectiveness is 0 after 48 hours. If you forget, it is still safe within 36 hours. You should take one tablet immediately and continue to take it as prescribed in the future. If you forget to take it for more than two days, you can stop taking it and start again after the next menstruation. Possible side effects: Nausea during taking, because the body reacts to the pregnancy state, disappears in 10-15 days ； You may gain weight and have abnormal bleeding in the early stages. Long-term users should avoid immediate pregnancy, and it is better to wait at least 4 months apart.