#7. Use a condom during anal sex
Even if you’re in a monogamous relationship, condoms are a good idea when it comes to anal sex. They reduce friction to provide a smoother entry. Since anal tissue is fragile and susceptible to microscopic tears, having anal sex without a condom could cause the bacteria already in your anal canal to enter your bloodstream. And use a separate condom for each sex act, if you’re going from vaginal sex to anal sex. Just be sure not to use an oil-based lube with a condom, since the oil could degrade the latex and cause the condom to break.