Condom use is a common contraceptive method. There are many kinds of latex free polyurethane condoms on the market. Most consumers may just choose one at a time, and most of them have little knowledge of condom use, resulting in frequent contraceptive failure. Today, let's talk about how to correctly understand and scientifically use latex free polyurethane condoms.

Simple and scientific contraceptives

The common materials of male latex free polyurethane condoms are latex, polyurethane, animal film and graphene. There are mainly three kinds: ultra-thin, thin and ordinary. Among them, the thickness of ultra-thin condom is 0.03mm, the thickness of ordinary condom is 0.04mm-0.06mm, and the thickness of thin condom is between the two. According to the diameter of the opening, it can be divided into four models: large, medium, small and extra small: the diameter of the opening 35mm is large, 33mm is medium, 31mm is small and 29mm is extra small.

The main function of latex free polyurethane condoms is to prevent pregnancy in the form of non drugs. At the same time, they can also reduce the probability of sexually transmitted diseases, prevent semen allergy, prolong sexual intercourse time and reduce the risk of cervical cancer.

Latex free polyurethane condoms are not exclusive to men

In fact, latex free polyurethane condoms are not exclusive to men, and female latex free polyurethane condoms are also an effective way of temporary contraception.

Female condom is a soft, transparent, firm and wear-resistant sheath made of polyurethane special material. Compared with ordinary latex sleeve, its thermal conductivity and toughness are better. Both ends of the female condom are provided with a flexible ring, and the bottom of the condom is completely closed. When used, it is close to the end of the vagina. The ring at the outer end is large and thin. When in use, it will always be placed outside the vaginal opening to block the direct contact between the root of the male penis and the female vulva. Compared with male latex free polyurethane condoms, female latex free polyurethane condoms are more effective in preventing the transmission of pathogens.

Correct use method

The structure of condom seems simple, but the correct use method is not necessarily understood by everyone.

There are three main steps in the use of male latex free polyurethane condoms. First, carefully tear the condom package from the edge, avoid sharp tools such as scissors, and ensure that the condom does not break. Secondly, hold the front end of the condom with your fingers, squeeze out the air, and then put it on the erect penis to keep the front space of the condom and ensure that the condom covers the whole penis. After ejaculation, while the penis is still erect, hold the edge of the condom tightly and pull out the penis.

There are five points to pay attention to when using female latex free polyurethane condoms. First, split ring and inner ring. The open ring will completely protect the vaginal opening, and the inner ring is used to fix its position in the vagina. Second, take it correctly. Pinch the inner ring with your thumb and middle finger, press your index finger against the bottom of the sleeve, or pinch the inner ring tightly. The third is the correct placement. Pinch the inner ring tightly and put the sleeve into the vagina until you feel it is in the correct position. Fourth, ensure the correct position. Make sure that the condom body is not twisted and that the split ring is always placed at the outer end of the vaginal opening. Fifth, take it out correctly. To avoid semen backflow, take out the condom before getting up, pinch and rotate the split ring while slowly pulling out the condom.

It should be noted that a new condom must be used before each sex and worn before sexual intercourse. If necessary, water lubricant should be selected. Oil lubricant (such as glycerol and white vaseline) is easy to cause condom rupture. Do not put the condom in a place easy to wear or close to heat source for a long time.

Scientific understanding of latex free polyurethane condoms

The common misunderstanding of latex free polyurethane condoms includes the following aspects.

1. I think latex free polyurethane condoms can completely prevent viruses. Traditional latex free polyurethane condoms have safety defects. Although they have a certain blocking effect on the virus, they can not completely prevent virus infection.

2. The thickness and size of latex free polyurethane condoms are inappropriate. The thickness of latex free polyurethane condoms has a great impact on men's psychology. The thinner the condom, the higher the sensitivity of men's penis in sexual life, but ultra-thin latex free polyurethane condoms are not suitable for everyone. Consumers tend to ignore the size when buying latex free polyurethane condoms. The condom is too large and easy to fall off in the vagina, resulting in contraceptive failure; If the condom is too small, it will feel uncomfortable and easy to burst.

3. Ignore the side effects of latex free polyurethane condoms. Although latex free polyurethane condoms can be effective contraception, excessive use will also have a certain adverse impact on women's health.

4. Do not use latex free polyurethane condoms during pregnancy. After the prostaglandins in male semen are absorbed by the vaginal mucosa, it can promote the strong contraction of the uterus after pregnancy, which will not only cause abdominal pain, but also easily lead to abortion and premature delivery.

5. Store latex free polyurethane condoms at will. Many people store latex free polyurethane condoms at will after buying them, or carry them in their trouser pockets and backpacks. In fact, latex free polyurethane condoms must be kept in a cool, dry and non-contact environment with acid, alkali and oil. The storage temperature should not be too high or too low, and sharp objects should not scratch the packaging bag.

6. Use latex free polyurethane condoms that exceed the shelf life. latex free polyurethane condoms also have a shelf life, generally 5 years, and some products are 3 years. Expired latex free polyurethane condoms are prone to rupture, resulting in contraceptive failure.