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How do condoms help reduce the transmission of sexually transmitted infections?

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varicocele — reproductive system disease Varicocele, enlargement of the veins of the spermatic cord, is a cause of infertility in men.

Condoms function as a barrier method that helps reduce the transmission of sexually transmitted infections (STIs) by sheathing the penis during sexual intercourse. By creating a physical barrier, they prevent the exchange of bodily fluids that can carry infectious agents.1

While condoms are a highly effective tool for reducing the risk of contracting STIs, it is important to note that they are not 100 percent effective. Their success in preventing transmission depends significantly on consistent and correct use. When used carefully, they provide a substantial reduction in the chance of infection, though they do not eliminate the risk entirely. For complete protection against STIs, abstinence or maintaining a mutually monogamous relationship with an uninfected partner are the only entirely safe practices.213