Hygiene
The biological function of the anus is to expel intestinal gas and feces from the body, therefore when engaging in anal masturbation, hygiene is important. One may wish to cover butt plugs or other objects with a condom before insertion and then dispose of the condom afterwards. To minimize the potential transfer of germs between sexual partners there are practices of safe sex recommended by healthcare professionals. It is important to not transfer bacteria from the anus to the mouth or the vagina, as infection may occur.
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