Condoms play an irreplaceable role in the prevention of STDs. Many of the STD viruses we know exist mainly in male semen and female vaginal secretions, so the physical isolation of the condom can prevent the virus from entering each other’s bodies through the above-mentioned means, thus playing an important role in the prevention of STD transmission. Therefore, it plays an important role in the prevention of STD transmission. Especially with the AIDS epidemic in recent years, in the absence of a vaccine or effective drugs, the use of condoms is strongly promoted to reduce the chances of transmission of the disease. Proper use of condoms reduces the chance of HIV infection during high-risk sex and plays an important role in the overall prevention of STDs. Thailand is a country that has done a good job in promoting the use of condoms. They have a “100% condom program”, which is strongly promoted by government officials and is known to everyone. China has also launched a pilot project of “100% condom use in entertainment venues”, meaning that every sexual act is used, the entire process is used, and all entertainment venues are used. But vigorously promote condoms, does not mean to encourage prostitution, premarital or extramarital sex, just like advocating drivers to use seat belts when driving does not encourage drivers to drive fast is the same, but only to play a safe preventive effect. But can the use of condoms during sex completely prevent STDs? Although condoms can be used to prevent STDs, there is a high failure rate, and from this perspective they are not absolutely safe. In the case of AIDS, the failure rate of condoms to prevent the disease has been reported to be 16.7%. In real life, there are many cases of people going to the hospital for abortion due to the failure of condoms. Therefore, you cannot think that everything will be fine as long as you use condoms. The main reason for the failure of condoms to prevent STDs is the poor quality of condoms and improper use caused by rupture and slippage. Here are a few of the main factors: 1, due to improper storage, so that condoms exposed to high temperature, bright light, humidity, strong acid, strong alkali or preservation time is too long, more than the expiration date, losing the original strength and elasticity. 2, the use of careless nails or rings and other sharp objects touch the thin wall of the condom, or the use of the front of the condom before the small ball of air out, after ejaculation caused by excessive pressure and burst condom. 3, with the proliferation of condom use, individual manufacturers driven by the interests of the production of a large number of poor quality products, or expired products into the market sales. 4, condoms in the use of the process of rupture or slip off. So how to use condoms correctly? Here is a brief, the main points: 1, to have sex every time the use of condoms, especially for high-risk sex, must do 100% use condoms, each time before sex to carefully check the expiration date and type of condoms, do not use expired condoms. 2, open the condom package should be torn from the opening, do not use scissors to cut, so as not to cut the condom. 3, before use should be deflated condom top for the storage of semen with a small air sac, empty the air at the top of the condom, and completely set to the root of the penis. 4, in high-risk sex, if the condom breaks or slips off during intercourse, immediately stop the activity, and use disinfectant to clean the genitals, and then bring a new one. 5, after ejaculation should be in the penis before the weakness of the finger pressed condom bottom together with the penis to withdraw, to avoid the condom not to slip out of the semen leakage, and then throw the used condom to the closed garbage can. 6, the condom itself has a lubricant, do not use Vaseline, liquid paraffin, face rubbing oil, body lotion and other lubricants. Otherwise, it is more likely to increase the brittleness of the condom and promote rupture. The most important point is that we must advocate healthy sexual behavior, eliminate prostitution, premarital or extramarital sex, is the most important prerequisite to prevent the occurrence of disease.