Anilingus
Anilingus is sexual stimulation of the anus using the mouth or tongue. It is also called oral–anal contact.
Anal anatomy: The structures surrounding the anal canal, including the sphincters, skin, nerves, and blood vessels. The tissues involved determine what kinds of contact may cause irritation or injury.
Sexual consent: Freely given, informed, specific, and revocable agreement to sexual activity. Consent must cover this specific activity and can be withdrawn at any time.
Cunnilingus: Oral stimulation of the vulva or vagina. It is another form of oral sex, involving different anatomy.
Sexuality: The ways people experience and express sexual feelings, identities, and relationships. The practice belongs to the varied forms of human sexual expression.
Fecal–oral route: Transmission of pathogens when material contaminated with feces reaches another person's mouth. This route explains how oral–anal contact can transmit intestinal infections.
Safer sex: Practices that reduce the risk of sexually transmitted infections and unintended pregnancy. Barrier use, communication, and testing inform risk reduction for oral–anal contact.
Fellatio: Oral stimulation of a penis. It is commonly grouped with anilingus as oral sex but targets different anatomy.
Sexual communication: Verbal and nonverbal exchange about sexual interests, boundaries, and experiences. Discussing preferences, comfort, and health concerns supports mutual understanding.
Sexually transmitted infection: An infection that can be transmitted through sexual contact, including some infections spread by oral contact. Some infections can pass through contact with infected skin, lesions, or bodily fluids.
Dental dam: A thin sheet used as a barrier between the mouth and vulva or anus during sexual contact. It can cover the anus and reduce direct contact with bodily material.