1. The most unsafe method 1. In vitro ejaculation: success rate <30% Which man can control the explosion and flow of sperm? Hardly. A small amount of semen usually flows out from the urethral opening before ejaculation, and each drop contains about 50,000 sperm. And this is enough to fertilize a woman's eggs. In the most intense stage of sprinting, the timing of withdrawal may be too late because the man is attached to the pleasure, and you may not be able to feel the semen injected. 2. Safe period contraception: success rate <30%. Many women seem to trust the purely "natural" contraceptive method of safe period, but before that you must first understand your ovaries, that is, fully understand your ovulation cycle. Understand how to calculate the safe period, and make sure you have a lot of patience and do not have sex outside the safe period. Otherwise, the "safe period" is just empty talk for you. Besides, many factors can interfere with our bodies now. , such as emotional stress, environmental changes, stress tolerance, etc., the failure rate of contraception relying on safe periods is particularly high. The latest Western research has found that sperm can survive in the vagina for up to 8 days. The survival time of eggs varies from individual to individual, ranging from 3 to 10 days. This means that it is actually possible to get pregnant from 8 days before ovulation to 10 days after ovulation, but the probability is lower. Therefore, contraception by calculating the safe period is very unreliable. When using safe period contraception, you cannot only use the date of your last menstrual period as a reference. It is recommended that you record your menstrual cycle for six months to understand the regularity of your menstruation. Don't believe in the vague concept of "one week before and after menstruation". You cannot simply use the safe period calculation method for contraception in the short term after using emergency contraceptive pills. Calculated safe period contraception does not apply to women whose menstrual cycles are less than 21 days, more than 35 days, or women who are postpartum or breastfeeding. 2. The most unhealthy way 1. Abstinence: 100% success rate. Although the success rate is high, all the fun is lost and it is not necessarily good for health. 2. Menstrual contraception: success rate <30% Maybe most people will not get pregnant during menstruation, but what if you are one of the very few? And don’t forget, sperm can survive in the vagina for up to 8 days. Another reason why experts frown on menstrual sex is that it increases the incidence of endometriosis. In addition, the incidence of ectopic pregnancy is also related to it. In addition, having sex during menstruation may increase a woman's bleeding, which increases the possibility of anemia. 3. Lactation period: success rate <90%. After delivery, the baby's sucking nipple action can reflexively inhibit the mother's hypothalamus, thereby inhibiting ovarian ovulation. But this method is also unreliable, because if the baby sucks the nipple less, the amount of milk secretion decreases, the milk concentration decreases, or stops breastfeeding, or if the mother is affected by the environment, climate, emotional changes and sexual life, the effect of lactogenic hormone on gonadotropin will be When the inhibitory effect weakens, the ovaries will resume their function from the quiescent state during lactation, discharge mature eggs, and gradually resume the menstrual cycle. According to surveys, 5%-10% of pregnant women become pregnant inexplicably during lactation. 3. The most fashionable way 1. Contraceptive patch: Contraceptive rate 92%-99.7% This is a preparation that is absorbed through the skin and uses a controlled release system of the drug to exert a contraceptive effect. Its biggest advantage is that it is more convenient to use, and the drug concentration in the body is controlled at a relatively low and stable level, thus eliminating the side effects that many women worry about due to excessive drug concentration, such as weight gain, gastrointestinal reactions, etc., and it can To achieve the purpose of long-term contraception. 2. Menstrual regulators and menstruation: The contraceptive rate is 99.7%. Menstrual regulators break the tradition that pregnancy is an absolute contraindication for contraceptive pills. A few days after a woman's menstruation is due, taking this medicine can induce menstrual cramps, and even if she becomes pregnant, it can cause the spontaneous abortion of very early embryos. The main components of menstruation are small doses of estrogen and progesterone. As long as you take the pink active pill for 84 days, you can continue to take the placebo for menstruation needs. In this way, in addition to contraception, women's menstruation can be changed to four times a year. This is undoubtedly good news for women who suffer from dysmenorrhea and anemia caused by excessive menstrual blood. 1. Condoms are the best choice for male contraception. The success rate is over 95%, it can also avoid the spread of diseases, and will not have any adverse effects on men's health. Failure may occur due to quality issues and improper usage. 2. Intrauterine device: success rate 94%-99%.
Currently, 156 million women around the world use IUDs for contraception, and 70% of women of childbearing age in Shanghai use IUDs. This is because the intrauterine device is a long-acting contraceptive method and is easy to operate. After wearing it, the contraceptive effect can last for about 5 to 10 years without feeling the presence of foreign objects in the body. In addition, IUDs do not disrupt or participate in the secretion of hormones in the body. However, if you have genital malformations or tumors, severe dysmenorrhea or heavy menstruation, pelvic inflammatory disease, gonorrhea and severe anemia, heart disease, or a history of ectopic pregnancy, you should not wear an intrauterine device. There is also a possibility of pregnancy when the IUD is first inserted. Therefore, other contraceptive methods should be used within one to two months after wearing the ring to ensure 100% safety. 5. The least accepted method 1. Subcutaneous implant: The contraceptive success rate is 99.9%. Cut a half-centimeter incision under the skin of the upper arm, and insert 2 or 6 small rod-like contraceptive pills in a fan shape. Once implanted, it can last for more than 5 years. However, a significant proportion of women experience irregular menstruation. If you plan to have children within a few years, it is best not to use it. 2. External spermicide: success rate 70%-80%. There are many types of spermicides: foam, emulsion, gel, solution and suspension. Before sexual intercourse, roll the pill into a ball and put it into the vagina. It will take effect after it dissolves. It is usually used in conjunction with other contraceptive methods such as condoms or oral contraceptive pills. 6. Oral contraceptives are a good choice. Advantages of oral contraceptives for women ◆Except for lactating women, all healthy women can use oral contraceptives for contraception. ◆High efficiency, reliability and safety are the biggest advantages of female oral contraceptives. If taken regularly, the contraceptive rate is above 99%. ◆Reversible, simple and easy - pregnancy can be resumed after stopping taking the medicine. It is more suitable for couples who still plan to have children. Generally, the pregnancy should be resumed half a year after stopping the medicine. ◆ Valuable therapeutic effect - If you have irregular menstruation, excessive menstrual flow, dysmenorrhea and other discomforts, it is more appropriate to choose short-acting contraceptive pills No. 1 and 2, because they can reduce menstrual flow and relieve dysmenorrhea. In addition, oral contraceptives are effective in treating endometriosis pain and preventing cancers of the ovaries and endometrium. ◆ When you find that other contraceptive methods have failed, you can also take combined oral contraceptive pills for emergency contraception. Know what you know and choose the contraceptive pill that suits you. The main ingredients of female oral contraceptive pills are progesterone and estrogen. They achieve contraceptive effects by inhibiting ovulation or preventing the implantation of fertilized eggs. Depending on the duration of the drug effect and the method of taking it, It is divided into three types: long-acting, short-acting and quick-acting. ◆Short-acting oral contraceptives There are three types of short-acting oral contraceptives: oral contraceptive pill No. 1 (norethindrone), oral contraceptive tablet No. 2 (compound megestrol tablets), and oral contraceptive pill No. 0. The first two are more commonly used. , the method of taking these three medicines: starting from the 5th day of the menstrual cycle (i.e. the 5th day from the day of menstruation), take 1 tablet every night for 22 days. Generally, menstruation will stop within 1-4 days after stopping the medicine. When it comes, repeat the above method and start a new round of taking medicine, over and over again without interruption. Note: If there is still no menstruation after stopping the medicine for 7 days, you should start taking the next cycle of medicine from that day. If you have continuous menopause for more than 2 months, you should stop the medicine and check the cause of menopause; if you miss a dose, you must take another 1 dose in the morning of the second day. tablets to avoid contraceptive failure or breakthrough bleeding; the medicine should be placed in a dry place to prevent the sugar coating of the tablets from deliquescence or falling off, causing insufficient dosage and affecting contraceptive requirements. ◆ Long-acting oral contraceptives: Compound 18-methylnorethindrone monthly tablets, Compound 16-methylmethindrone monthly tablets, long-acting No. 1 contraceptive pills. Long-acting birth control pills are generally effective if you only take one pill per month. The usage of Compound No. 18 YiA long-acting contraceptive pill is: take 1 tablet after lunch on the 5th day of the menstrual cycle, and then take 1 tablet every 28 days; Compound 16 YiA is to take 1 tablet after lunch on the 5th day of the menstrual cycle. Take one tablet every 20 days for the first two times, and then take one tablet every 30 days. Menstruation usually occurs 6 to 12 days after taking the medicine; for Long-acting No. 1, take one tablet on the 5th day of the menstrual cycle, 20 days after taking the medicine. Take another 1 tablet a day later, and then 1 tablet every 30 days.
◆Rapid-acting oral contraceptives Rapid-acting oral contraceptives are mainly suitable for use by couples living in two places when they temporarily visit relatives for a short period of time, so they are also called family-visiting contraceptives. There are norethindrone family-visiting tablets, norethindrone family-visiting tablets, and family-visiting contraceptive No. 1. No. 53 family visiting pills, 18-methylethinone family visiting pills and chlorether contraceptive tablets, etc. The taking time of the family visiting contraceptive pill is not restricted by menstrual period, but the method of taking each pill is different: No. 1 family visiting contraceptive pill, in the family visiting pill Take one tablet at noon or in the evening on the day you live together, and then take one tablet every night until the visit to relatives is over, and then take another tablet in the morning the next morning. It cannot be taken continuously for more than one month, and it can be used up to 2 times in a year; No. 53 contraceptive tablet for visiting relatives, every time you have sexual intercourse Take 1 tablet after the first sexual intercourse, and take another 1 tablet in the morning after the first sexual intercourse. For norethindrone family visiting tablets, take 1 tablet daily for at least 10 days after visiting relatives. If the visit to relatives does not end after taking it for 14 days, you can continue to take short-acting contraceptive tablets No. 1 or No. 2. Expert advice: ◆Some women experience side effects after taking oral contraceptives: similar to early pregnancy reactions, bleeding, amenorrhea or reduced menstrual flow, increased leucorrhea, stomachache, headache, rash, etc. Some symptoms will go away naturally after taking the medicine for 2 to 3 months. disappear or recover spontaneously after discontinuation of medication. When you feel unwell, it is best to go to the hospital for treatment, listen to the doctor's advice and receive symptomatic treatment. ◆Failure to take pills strictly as required, missing pills, or taking pills at incorrect times will lead to contraceptive failure. ◆Contraceptive failure may occur if you take other drugs at the same time: antispasmodics, such as chlordiazepoxide; antituberculosis drugs, such as rifampicin; antibiotics, etc. Therefore, you should explain the situation to your doctor and take the medicine under the guidance of your doctor. ◆Oral contraceptives are prohibited for patients with acute and chronic hepatitis, nephritis, malignant tumors, breast lumps, and diabetes. ◆People with blood diseases and high blood pressure should not use oral contraceptives or use them with caution. ◆People with oligomenorrhea or a history of thromboembolism should use oral contraceptives with caution. ◆It should not be used by lactating women. After a miscarriage, it is best to take birth control pills after menstruation. ◆ Women who have a smoking habit should use birth control pills with caution or use other contraceptive methods.