What is the safest way to prevent pregnancy?

page views:1 Publication date:2023-05-26 08:17:32

The first contraceptive method is intrauterine contraception. Half of married women who are already using contraception use this method. While we say IUDs last a long time, their effectiveness is actually poor, and they are largely obsolete. Now, the main method is the intrauterine device (IUD). This is a schematic diagram of the uterus; the uterus is an inverted triangle. In the past, we said IUDs could last a lifetime, but now copper-filled IUDs last about ten years. An important point is that our country has made family planning a national policy, with IUDs as a primary method and sterilization as a secondary method. This is a very good contraceptive method, and it's simple and economical. Even if an IUD costs 100 yuan and lasts for 10 years, the monthly and annual cost is very low. We'll introduce some common IUDs: trapezoidal rings, uterine cavity-shaped rings, and the "Mother's Loop" (母体乐). This is the most commonly used ring; these contain anti-inflammatory drugs to reduce menstrual bleeding. There are also MCU functional IUDs. A key component in these is copper, which can kill sperm and achieve contraception. The second method is steroid hormone contraception, which includes oral and injectable forms. Currently, there are five types of birth control pills provided free of charge by the government, and another five types available at pharmacies. These are all provided free of charge by the government, including levonorgestrel-containing tablets, etc. We also have triphasic tablets, whose ingredients and dosages are adjusted to mimic the changes in a woman's menstrual cycle. One feature of this product is its user-friendly packaging, which indicates the day of the week to help women take the pill on time and minimize the chance of missing a dose. The date on the packaging tells you which pill to take today. Third, emergency contraception has been proposed worldwide since 1995 in response to the high rate of abortions. It is a remedial measure in cases of unprotected intercourse or contraceptive failure, such as a broken condom, miscalculation of the safe period, or improper withdrawal. China has seen rapid development in emergency contraception both domestically and internationally, so levonorgestrel is very commonly heard of in the market. Fourth, among steroidal hormonal contraceptive methods, there is combined oral contraceptive injection. It is rarely used in cities. This method effectively controls the menstrual cycle, causing withdrawal bleeding around 20 days into the cycle, which is often mistaken for menstruation, after which another injection is given. Besides combined oral contraceptives, there are also progestin-only contraceptive injections, administered every three months, which we also call long-acting contraceptives. We'll soon discuss what Beijingers call "thread embedding." We use a special cannula placed five to seven centimeters above the elbow. It's visible even when wearing short sleeves in summer, and it has excellent contraceptive efficacy, providing protection for up to five years. We also offer two-injection subdermal thread embedding for four years. Fifth, barrier methods of contraception: Currently, the most commonly used method in China is the male condom. We used to just say "condom," but now there's a distinction; there are male condoms, the kind you usually see on the street. Many years ago, there were diaphragms, which were larger in diameter and shallower, placed inside the vagina to separate the cervix from the vagina. During intercourse, sperm wouldn't enter the female reproductive tract. These diaphragms needed to be prepared at a hospital, but unfortunately, this product is not available in China now, so few people use them. Why are diaphragms and male condoms grouped together? Because male condoms and diaphragms are combined to create female condoms. In other countries, there's a female symbol for this, so we simply write "female condom." This is more commonly used abroad, and the materials are different. Male condoms are currently made of latex, while female condoms are made of polyurethane. This is made domestically; it seems polyurethane isn't readily available, and the technology isn't very mature. We mainly make latex condoms. The function of female condoms in preventing disease is more important than their contraceptive function. A key feature is that women are more liberated and have more control. With male condoms, if the male partner doesn't cooperate, there's no way to use them. Therefore, female condoms better reflect women's autonomy. Sixth, other contraceptive tools are rarely used domestically. This is a cervical cap, smaller in diameter and deeper. This is a newer cervical cap with a large tail. There's a hole here, and this side connects to the cervix. The large tail is used to press down, preventing semen from entering the female reproductive tract. There are also vaginal sponges, which act as a barrier. The sponge's pores are filled with spermicide, providing better protection during use. These are all external contraceptives, and their main ingredient is spermicide. This is the same as the detergents we use. There's a domestically produced spermicide called "Lelemi," which has a very appealing name. There's also "Lelemi" contraceptive film, which is a type of suppository called "Ailv." Seventh, there's sterilization surgery, specifically tubal ligation. This involves tying the fallopian tubes together and hiding one end. This is a diagram of a commonly used tubal ligation procedure. There's also the use of silver clips. This is male sterilization, vasectomy. Our country invented this method globally. Currently, many places internationally use anterior vasectomy, which was learned from China. In China, 8% of contraception is handled by men who have undergone vasectomy.
Appendix: There are generally two common methods of contraception for premarital sex: using condoms and taking emergency contraception (not recommended because it cannot be used frequently). Condom usage guidelines: 1. Use a new condom each time you have sex.
2. Carefully open the packaging; do not tear the condom, and do not use a damaged condom.
3. Do not unroll the condom before putting it on the penis. The old practice of blowing on it to check before use is no longer applicable, as qualified products generally do not have damage issues, and the packaging is already rolled up for easy use. Unrolling it before use actually makes it more difficult to put on.
4. Put the condom on the penis after erection and before penetration.
5. If you have not been circumcised, retract the foreskin, pinch the small bubble at the tip of the condom, and put it on to the end of the penis.
6. Continue to pinch the bubble at the tip of the condom as you unroll the condom to the base of the penis.
7. If you see a tear when putting on the condom, or feel that it has already torn while using it, stop immediately and replace it with a new one.
8. After ejaculation, while the penis is still erect, pinch the base of the penis and carefully pull the penis out of the vagina.
9. Gently remove the condom, being careful not to let semen leak out. How to use a condom? What to do if the condom slips into the vagina during intercourse? A condom is a thin latex product in the shape of a tube with a rubber ring at the opening and a small pouch at the top. When put on the penis, it can prevent sperm from entering the vagina, thereby preventing sperm from meeting the egg and achieving the purpose of contraception.
When using it, pay attention to the following:
(1) Choose an appropriate size condom according to the size of your erect penis. Generally, there are three sizes: large, medium, and small. Otherwise, if the condom is too large, it will easily slip off, and if it is too small, the penis will be too tight and uncomfortable, affecting intercourse.
(2) Before use, you can blow air into the condom and pinch the opening to check for any air leakage.
(3) When using, the air inside should be expelled, especially the air in the small sac, to prevent the tip from breaking during ejaculation and causing contraceptive failure.
(4) After ejaculation, before the erect penis completely softens, use your fingers to hold the opening of the condom and pull it out together with the penis.
(5) After pulling it out, check the condom again for any breakage. If it breaks, take remedial measures.
If the condom slips into the vagina during intercourse, stop intercourse immediately and gently insert two clean fingers into the vagina to remove it. Do not continue using the condom; it is best to replace it with a new condom before intercourse. If the condom slips into the vagina after ejaculation, take remedial measures immediately. Instruct the woman to squat down and let the semen flow out of the vagina, and wash the semen from the vaginal opening. At the same time, inject contraceptive cream into the vagina. As a precaution, it is best to take emergency contraception immediately, such as diethylstilbestrol 50 mg for five consecutive days. Regarding the female safe period contraception method, normal women of childbearing age have a menstrual period once a month. The period from the start of one menstrual period to the first day of the next is called a menstrual cycle. Ovulation usually occurs about 14 days before the next menstrual period. The released egg can survive for approximately 24 hours; if fertilization does not occur, it degenerates and is absorbed by the body.
Sperm can retain their fertilizing ability for 1-3 days after entering the female reproductive tract. Therefore, a woman has a higher chance of pregnancy if she has intercourse with a man between 3 days before and 1 day after ovulation. If either the sperm or egg has lost its fertilizing ability when they meet, pregnancy will not occur.
Medically, the 10 days encompassing the 5 days before and 4 days after ovulation, including the day of ovulation itself, are considered the fertile window for women. The rhythm method of contraception refers to having intercourse during this non-fertile window to avoid unplanned pregnancy. The key to this method is accurately determining the ovulation day.
Some people may think that since the fertile window can be predicted, contraception is simple. However, many women have experienced unintended pregnancies precisely because they blindly trust the rhythm method, as the ovulation day is not constant and difficult to determine accurately. While the ovulation day is predictable for women with regular menstrual cycles, it is impossible to predict for those with irregular cycles. Medical research has found that certain stimuli (such as sexual stimulation from a long-awaited reunion or emotional excitement) can cause premature ovulation; or, after ovulation, certain factors can trigger two ovulations within the same cycle...

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