How to use condoms the safest way

　　Just two centuries ago, human sexuality and reproduction were two sides of the same coin. But since the advent of condoms and oral contraceptive pills, human sexual history has undergone a huge revolution. From then on, sex and reproduction can exist separately, and sex can only play the role of pleasure. However, a recent investigation by the health unit found that the failure rate of condoms on the market was as high as 30%, which once again attracted attention to the "safety" of condoms.

A condom is a tube made of latex and lubricated. The method of use is to put it on the erect penis. male ejaculation Afterwards, the semen is retained in the condom, thus achieving the contraceptive effect and reducing the risk of sexually transmitted diseases , such as the infection or spread of AIDS. Recently too female The condom can be used by inserting it into the vagina at any time before sexual intercourse.

Just as the development of human clothes has evolved from practicality and beauty to variety, so have condoms. From the simple and smooth Yangchun type, it has changed to various forms such as particles, markings, colors, fluorescence, etc. on the surface, and even various drugs are added to the condoms. The United States and Canada sold 500 million condoms in 1992, one-third of which were added with spermicide in order to enhance their effectiveness in contraception and reduce sexually transmitted infections. Nowadays, there are also surface anesthetic additives, hoping to increase the time you can have intercourse.

As far as sex is concerned, being brave enough to try can increase your interest, but you also need to understand and guard against possible side effects. A surface that is too rough may cause epidermal abrasions to sexual partners, which may lead to infection. Fluorescent agents are known to be harmful when entering the human body. For example, fluorescent additives are known to be one of the carcinogens. Spermicide may cause changes in local bacterial populations and cause urinary tract infections. Topical anesthetics can cause allergic reactions in some people, causing local redness, swelling and itching, and in severe cases, shock.