Rimming: the real risks, hygiene and pleasure

Rimming is a common and well documented practice, yet it is one of the few where the information available online splits into two camps that never speak to each other. On one side, solid health sources that list infections without ever saying which ones are actually likely. On the other, practical guides that explain how to go about it without ever citing a source.

This page does both. It ranks the real risks alongside the sources that document them, it gives you the preparation and the barriers that genuinely work, and it deals head on with the point of view of the person receiving, which no guide in this space does today.

The key takeaways

• The medical term is oral-anal contact. In older French it is called feuille de rose, and in English you will hear rimming or rimjob.
• HIV is not the main risk of this practice: Sidaction describes it as extremely low, because the virus is not transmitted through saliva.
• The real risks are digestive and hepatic: hepatitis A, salmonellosis, yersiniosis, parasites.
• There is a vaccine against the main viral risk, already recommended in France for part of the population concerned.
• An Ifop 2019 survey shows that 26% say they have received it against 15% who say they have performed it: receiving is more common than giving.
• Washing reduces the risk but does not cancel it, and going overboard with enemas backfires.

Rimming: what the word actually covers

Rimming is oral-anal sex: stimulating a partner's anus with the tongue or the lips. That is the definition given by the Societe Francaise d'Hepato-Gastroenterologie Liberale (SFHGL), which specifies that the contact may involve the anal margin, or even the anus itself.

The act goes by several names depending on register. Rimming and rimjob are the everyday English terms, by far the most widespread online. Feuille de rose is the old French expression, dated but still understood. Sidaction simply calls it oral sex applied to the anus.

The SFHGL draws a distinction that runs through the rest of this page, and that shapes the question of risk as much as the question of pleasure: there are active and passive oral-anal contacts. Active is the person giving, passive the person receiving on their anal margin. The two roles are not exposed to the same things and do not call for the same preparation.

Then there is the point half the guides dispose of in one line: the area is densely innervated. The anal margin holds a large number of nerve endings, which is why stimulation there is intense and why the practice keeps gaining ground. This is not a fringe curiosity, it is an erogenous zone in the strict sense.

Receiving a rimjob as a man: perineum, prostate and erection

Receiving is more common than giving, and yet nearly every guide out there is written from the point of view of the person giving. That is the main blind spot on this subject, and it concerns men directly.

Anatomically, three areas form a continuum. The anal margin, which takes the direct contact. The perineum, just in front of it, between the anus and the scrotum, a sensitive area that often gets overlooked and that the tongue reaches easily in most positions. And the prostate, deeper in, which this practice does not reach but which sits along the same region, which is why many men describe a deep, diffuse sensation rather than a localised contact.

One very concrete consequence, rarely anticipated: in the person receiving, an erection is common and often sustained, with no stimulation of the penis at all. It is a sign that the area works as a fully fledged erogenous zone, not a side effect.

That anatomical continuity is also what makes rimming a frequent gateway to prostate stimulation proper. If that is the direction that interests you, the subject is covered in detail in our guide to prostate pleasure, and there are accessories designed for that exact area, such as the vibrating prostate plug cock ring.

One thing deserves saying plainly, because it holds a lot of men back: an erogenous zone has no sexual orientation. The SFHGL notes that the practice is common among gay men. The 2019 Ifop survey shows it is just as common among straight women and their partners. Those are two statistical observations, not a label. Enjoying a rimjob says nothing about your orientation, it only says you have nerve endings in the same place as everyone else.

15% give it, 26% receive it: what the numbers say

The most quoted survey on the subject in France dates from 2019, and its most interesting finding is a gap nobody comments on.

It is an Ifop poll commissioned by Elle magazine on the sex lives of French women. Allodocteurs reports the following figures: 15% of respondents admit to having performed rimming on their partner, and 26% say they have had their anus licked. The SFHGL cites the same survey with 15% and 25%, the difference coming down to rounding or to the sub-sample used. Let us keep the range: roughly 15% on one side, 25 to 26% on the other.

The information is not in either figure taken alone, it is in the gap between them. About ten points separate those who receive from those who give. Mechanically, that means a share of the people who have received a rimjob did not return the favour, and that demand clearly outstrips supply. So the brake is not the desire of the person receiving, it is the awkwardness of the person who would have to give. That is the exact opposite of what the guides suggest, since they spend most of their space convincing the receiver to relax.

The SFHGL also puts forward a hypothesis about the rise of the practice: easy access to pornography that shows it would explain steadily higher rates. Take it as a hypothesis, which is how the source itself frames it.

The real risk ranking: HIV is not the one you think

The risk almost everyone dreads here is precisely the one that matters least, and the real risks lie elsewhere. This is the most useful information on this page, and it is also what no guide on the subject spells out.

Let us start with HIV, since it is the word that comes to mind first. Sidaction states that cases of HIV transmission through rimming are very rare and that the risk of transmission is extremely low, for a simple reason: HIV is not transmitted through saliva. The association does add a caveat that deserves quoting in full: if the act is performed after anal penetration that caused lesions, entry of the virus is in principle possible. Low does not mean zero, and the order of acts matters, more on that below.

The real risks are of a different nature. The SFHGL spells them out:

• Hepatitis A can perfectly well be transmitted during oral-anal contact, because the virus is partly excreted in stools. It is the main viral risk of this practice.
• Digestive infections are real: salmonellosis, yersiniosis, or gastroenteritis caused by a parasite such as tapeworm. If your partner has gastroenteritis, contamination is possible.
• HPV can be transmitted through contact with warts on the anal margin.
• Herpes travels both ways: a cold sore can infect a partner's anal margin, and a lesion on the anal margin can infect the person giving.
• Syphilis, gonorrhoea and chlamydia are likewise transmitted in both directions.

Here is the SFHGL point that surprises people most, and that changes how you prepare: germs lodged in the mucosa or on the skin do not wash away. A partner can have washed thoroughly and still be infectious. Hygiene reduces the risk, it does not cancel it.

The conclusion to draw is not that the practice is harmless. It is that the danger is not the one people assume, and that it is therefore prevented by something other than the reflex of a shower.

Hepatitis A: the one risk you can be vaccinated against

There is a vaccine against the main viral risk of this practice, and it is already officially recommended in France for part of the people concerned. None of the guides on the subject mention it.

Sante publique France, through the vaccination-info-service.fr website, recommends hepatitis A vaccination for several exposed groups, among them men who have sex with men. Two practical figures come with that recommendation: antibodies appear in 98 to 100% of vaccinated people after the first dose, and the vaccination must be given at least 15 days before exposure to be protective.

Three clarifications so that this paragraph is read correctly. It is a targeted recommendation, not a general obligation nor advice that applies to everyone across the board. The decision is made with a doctor, a vaccination centre or a sexual health clinic, who will check your situation. And the vaccine covers hepatitis A, not the rest of the table above.

For that rest, Sidaction's recommendation is clear and fits in one word: regular screening. The association points out that you need to take precautions against syphilis, gonorrhoea, hepatitis A and intestinal germs, in particular by getting screened regularly. STI screening is free and needs no prescription at a CeGIDD sexual health centre.

Getting ready: hygiene of the anal margin, and the enema trap

The SFHGL asks for impeccable hygiene of the anal margin beforehand, and that is a necessary condition, not a sufficient one. The useful routine is short and simple.

What genuinely helps:

• A lukewarm shower in the hour beforehand, not the night before.
• A mild, pH neutral soap, the anal margin cleaned by hand, without a flannel or sponge, which irritate.
• A thorough rinse: soap residue left on a mucous membrane is a source of irritation in its own right.
• Careful drying, by patting.
• If you want to go further than the anal margin, the SFHGL mentions the option of an enema. Occasional, lukewarm water, no product.

What works against you, and that instinct nonetheless pushes you towards:

• Repeated or aggressive enemas. They irritate the mucosa, and an irritated mucosa is exactly the way in for the infections listed above. You end up manufacturing the very risk you thought you were eliminating.
• Antiseptic or perfumed soaps, which throw the area off balance.
• Shaving on the day, which leaves fresh micro-cuts. If you trim or shave, do it the day before. Body hair is not an obligation in any case, only a matter of comfort on contact.

Keep the SFHGL reminder in mind: even perfectly washed, a partner carrying a germ lodged in the mucosa can still be infectious. Hygiene is the first step, the barrier is the second.

Dental dam, cut-open condom and lubricant: the barriers that hold up

When you do not know your partner, the SFHGL is categorical: one solution only, the dental dam. It is a square of latex or polyurethane placed between the mouth and the anal area, blocking direct contact without killing the stimulation.

The society also gives the alternative you can find anywhere: a condom cut open for this kind of contact. In practice, starting from a non-lubricated, non-spermicidal condom:

• Unroll it completely.
• Cut off the closed tip.
• Cut along the full length, on one side only.
• Unfold it: you get a latex rectangle usable as a dam.

Two rules of use, non-negotiable. Single use: a dam is not reused, and it is not rinsed to serve again. One way round: one face stays against the skin, the other against the mouth, and you never flip it mid-session, which would cancel out exactly what it was there to prevent.

For comfort, a water-based lubricant placed under the dam restores a good share of the sensation. It is also the only type compatible with both latex and silicone, and therefore with any silicone accessories you might use in the same session. Oil-based lubricant degrades latex, silicone-based lubricant attacks silicone toys.

Rimming, cock rings and plugs: what accessories change

An accessory worn during the act changes three things: the sensation, the duration and the hygiene protocol. It is a point no guide on the subject covers, even though it comes up as soon as a session goes beyond the act on its own.

A cock ring worn during. In the person receiving, an erection is common and often sustained, and a ring keeps it going. The rule on duration is the one that applies to all our cock rings: do not go beyond 20 to 30 minutes, and take it off immediately in case of numbness, pain or a change of colour. A silicone perineal model is of particular interest here, since it works precisely the area the practice calls on.

A plug, before or after, but not in between without washing. A plug relaxes the sphincter and prolongs the stimulation, and the combined models in the cock ring plug collection do both at once. But it occupies the very area that is then in contact with the mouth. Taking out a plug then going straight into a rimjob means carrying everything that was in contact with the inside out to the anal margin, then to the mouth. In between, the accessory needs washing and so does the area. Penetration and the gear that goes with it are covered in our pegging guide.

Toy hygiene, finally, for the same reason that justifies the dental dam. Silicone is cleaned with lukewarm water and mild soap after every use, dried completely before storage, and never shared between two people without cleaning. An accessory that has touched one person's anal area is, microbially speaking, exactly as much of a carrier as direct contact.

Positions: where to place yourself depending on who is receiving

Choosing a position comes down to two criteria only, access and comfort over time, not folklore. Three set-ups cover most cases.

• On all fours. Maximum access, the simplest position to start with and the one that needs the least coordination. It becomes tiring for the person receiving beyond a few minutes, especially on the arms.
• On the back, legs drawn up towards the chest. Good control for the person giving, eye contact possible, which helps a lot on a first time. It is, on the other hand, the most physically demanding for the person receiving, who has to hold the position.
• Face down, a cushion under the hips. The most comfortable over time for both, the least tiring, and the one that makes it easiest to relax. It is often the best option if the session is going to last.

On how to build up, three principles beat a script. Start around the area rather than on it, the perineum and the inner thighs being good ways in. Work with a flat tongue and light pressure first, the tip and the intensity only come afterwards. And follow your partner's reactions rather than a learnt sequence: varying the rhythm does more than technique. A dedicated selection is there if you are after gear designed for these set-ups.

The order of play: anti-contamination checklist, hands and sex toys

Within a single session, the order of acts determines a large share of the risk, and it is the blind spot of every guide on the subject. Here is the sequence to follow, in order.

• Check consent and desire beforehand, not during. The SFHGL points out that the practice calls for a certain degree of trust and closeness.
• Start with the shower described above, in the hour beforehand, on both sides.
• Put the barrier in place if your partner is not a regular, screened partner. That is the SFHGL's explicit rule.
• Absolutely avoid going from the anal area to the mouth, to your partner's genitals or to another accessory without washing or changing the barrier. This is where cross-contamination happens.
• Use lubricant if the session goes on to anal penetration. Sidaction points out that lesions created by penetration open a door to HIV, and rimming performed afterwards is no longer in the same risk category.
• Rinse and wash your hands afterwards, before touching anything else.
• Put your gear away only after cleaning and drying it, not the next day. An accessory stored damp or dirty recontaminates itself. If you round out your sessions with vibrating models, the same rule applies to each of them.
• See a doctor in case of fever, diarrhoea, jaundice or a lesion in the days or weeks that follow, telling them about the practice. That is what lets them look for the right thing first time.

Rimming FAQ

What is the risk of giving a rimjob?The main risk is not HIV, which Sidaction describes as extremely low for this practice. The real risks are hepatitis A, whose virus is excreted in stools, digestive infections such as salmonellosis and yersiniosis, and two-way STIs. The table above ranks them by level.

How do you clean yourself before a rimjob?A lukewarm shower in the hour beforehand, a mild pH neutral soap on the anal margin, a thorough rinse and careful drying are enough. Avoid repeated enemas, which irritate the mucosa and increase the risk instead of reducing it. And remember that washing reduces the risk without cancelling it.

How do you give a rimjob for the first time?In three moves. Settle into a position that is comfortable for the person receiving, face down with a cushion under the hips ideally. Start around the area, flat tongue, light pressure. Then follow the reactions rather than a sequence, varying the rhythm more than the intensity.