Condoms cannot prevent the spread of sexually transmitted diseases

　　People generally think that condoms and condoms are the same thing, just called different things, but in fact, traditional natural latex condoms are very effective in blocking sexual transmission. disease Its effectiveness is being questioned by more and more research results. Researcher Zhu Qi, secretary-general of the Chinese Sexology Society, pointed out that calling condoms "condoms" is unscientific. Studies have shown that using condoms to prevent AIDS、Hepatitis B , the failure rate of genital warts is much higher than preventing pregnancy, condoms ≠ condoms.

　　The function of traditional latex condoms is to block, and as long as they are used correctly, they can block the spread of the virus to a certain extent. Under the existing medical conditions and in the absence of better preventive measures, in order to reduce sexually transmitted diseases and increase relative safety, the mass promotion of condom use has been widely adopted by governments of various countries. But how effective are condoms at blocking viruses? Is it possible to block all viruses 100%?

　　Condoms have made important contributions to human beings in terms of contraception and preventing the spread of diseases. However, they do not prevent male Semen enters female At the same time as the reproductive tract, it is also possible to "trap" the female genitals. healthy。

　　Let’s take a look at the research results published in some internationally renowned medical journals: The New England Journal of Medicine reported that the failure rate of condoms to prevent AIDS was 16.7%, and the British Journal of Social Sciences reported that the failure rate of condoms to prevent AIDS was as high as 31%. A scientific task force composed of the National Institutes of Health (NIH), the Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and the United States Agency for International Development (US-AID) studied the effects of condoms on hepatitis B, HIV, gonorrhea, chlamydia, syphilis, chancroid, sexually transmitted diseases The protective effect of 9 sexually transmitted diseases, including lymphogranuloma, genital herpes and genital warts, found that currently widely used condoms are not safe and effective in preventing the spread of any sexually transmitted diseases! On July 20, 2001, the task force issued a report jointly with the U.S. Department of Health and Human Services (hhs) stating: There is no scientific evidence that condoms are effective in preventing most sexually transmitted diseases.

　　There are three main reasons:

　　First, viruses such as AIDS, hepatitis B, and human papilloma are far more sperm Small, condoms can block sperm but not necessarily various viruses. Traditional condoms each have more than 100 million pores with a diameter of 120 nanometers or more. The latex membrane has natural cracks between 5,000 and 70,000 nanometers. It can only effectively block particles with a diameter similar to human sperm (about 3,000 nanometers in diameter), but cannot completely block particles with a diameter equal to or less than 120 nanometers. In other words, it is entirely possible for 42-nanometer hepatitis B virus, 50-55 nanometer human papillomavirus, and 120-nanometer HIV to penetrate traditional natural latex condoms;

　　Second, HIV can invade the mucosa of reproductive organs through multiple ways, skin , the sperm has the only way to enter the fallopian tube;

　　Third, pregnancy is limited by the time of ovulation, while HIV infection is not subject to any time limit.

　　These factors determine that even if condoms are used correctly, the chance of infection with HIV, hepatitis B, human papilloma and other viruses is higher than pregnancy.

　　Not only that, the German Institute for Risk Assessment has disclosed new research information: latex condoms can generate a carcinogen, nitrosamines, during the vulcanization process. Animal experiments show that when the total amount of nitrosamines applied topically to the skin and mucous membranes is about 1g, it will induce local or systemic tumors, especially liver tumors. Although the nitrosamines released from condoms are far less than this amount, there is still a potential risk of inducing tumors if used frequently. In addition, some people who are allergic to latex protein may develop allergies after using latex condoms. Moreover, traditional condoms are acidic, which will destroy the acid-base balance of women's vagina and easily induce various gynecological diseases.

　　From this point of view, the lack of density to effectively block various viruses such as AIDS and hepatitis B; the presence of carcinogens nitrosamines; allergic reactions caused by latex proteins; and the alkaline nature of natural latex condoms have become four major shortcomings that traditional latex condoms cannot overcome. Traditional latex condoms are not safe!