Use only one condom per sex. Make sure to use a new one each time.
A condom that has been used once may be contaminated with sperm and other pathogenic viruses through semen, which can lead to pregnancy and sexually transmitted diseases. In addition, the condoms should be cleaned before use. There is also the possibility that the condom will be damaged due to "scratches on the body during washing" or "deterioration of the material during drying".
It is also important to be careful if you put the condom on the wrong side.
Even before ejaculation, semen may have gotten on the condom, so use a new condom.
