Our external tissue has layers of dead cells that serve as a protective barrier against infection. Anal Sex Does Not Have To Hurt Although some myths suggest that anal sex is painful, the truth is that — like vaginal sex — anal sex does not have to hurt. Penetration can tear the tissue inside the anus, allowing bacteria and viruses to enter the bloodstream. The tissue inside the anus does not have this natural protection, which leaves it vulnerable to tearing and the spread of infection. While some people find anal sex enjoyable, the practice has downsides and requires special safety precautions. Repetitive anal sex may lead to weakening of the anal sphincter, making it difficult to hold in feces until you can get to the toilet. If you want a healthy sex life, you absolutely must know how to have anal sex safely. Of course, you must never insert the penis into the vagina after anal sex without first removing or switching the condom. Even though serious injury from anal sex is not common, it can occur. People who agree to be passive partners in anal sex generally have low self esteem, which is further fueled by subsequent occasions of it. However, Kegel exercises to strengthen the sphincter may help prevent this problem or correct it. This is a dangerous problem that requires immediate medical attention. Preventing Anal Sex Problems The only way to completely avoid anal sex risks is to abstain from anal sex. The basic purpose of the anus is to keep fecal matter, which is full of germs, inside the colon until the time arrives to release it.