MMRSA Guide
Microscopic illustration of MRSA (Staphylococcus aureus) bacteria
Reference · Is MRSA contagious? · Intimacy

MRSA and intimacy: is it sexually transmitted?

MRSA is not on the standard STI panel, but it can and does spread during sex. The route is skin-to-skin contact with a lesion or a colonised area — not semen or vaginal fluid — and the same rules that stop household spread stop it here.

Reviewed and updated by the MRSA Guide editorial team.

Not classical STI, still transmissible

MRSA is caused by Staphylococcus aureus — a skin bacterium — not by an organism that lives in genital secretions. It is not routinely tested for in sexual-health clinics. Even so, close physical contact during sex creates exactly the conditions that spread MRSA: skin-to-skin friction, minor abrasions, and contact with active lesions or colonised skin around the groin, buttocks and thighs. Clusters of buttock and genital abscesses caused by the USA300 strain have been reported in sexually active adults, including well-documented outbreaks among men who have sex with men.

Reducing risk with a partner

  • Don't have sex while you have an active lesion. Wait until the abscess has drained, is dry, and can be securely covered, and you have completed at least 72 hours of any prescribed antibiotic.
  • Cover any healing wound with a clean dry dressing that will stay in place.
  • Don't share towels, razors, sex toys or lubricant containers with a partner who has an active infection.
  • Shower before and after sex with soap and water, and change bedding after sex if either partner has an active or recent infection.
  • Tell your partner. Concealing an active MRSA infection is how genital, groin and buttock clusters happen.

If lesions keep appearing

Recurrent boils in the groin, buttocks or genital area in a sexually active person are a strong signal to test for MRSA and to consider treating both partners at once. Standard decolonisation is mupirocin nasal ointment plus chlorhexidine body wash for 5–10 days. See why MRSA comes back for the full protocol.

Related reading

Back to the prevention hub, or read about preventing MRSA at home and why some people keep getting it. Background on how MRSA spreads.

Frequently asked questions

Is MRSA sexually transmitted?
MRSA is not classed as a sexually transmitted infection in the way chlamydia, gonorrhoea or HIV are, but it can absolutely spread during sex. The mechanism is skin-to-skin contact and contact with an active lesion or a colonised area — the same mechanisms that spread MRSA elsewhere. Clusters have been documented among men who have sex with men involving the USA300 strain, but MRSA can be transmitted between partners of any gender.
Can you get MRSA from sex?
Yes — if a partner has an active MRSA lesion (a boil, abscess or infected wound) or heavy skin colonisation, close contact and friction during sex can transfer the bacteria to broken or intact skin. Genital, buttock and groin abscesses caused by CA-MRSA are well described in sexually active adults.
Should I avoid sex if I have MRSA?
Yes, until the lesion has fully drained, is no longer actively weeping and can be securely covered, and you have completed at least 72 hours of appropriate antibiotic therapy if one has been prescribed. Even after that, avoid direct contact with the healing area until the skin is intact. Communicate with your partner rather than concealing an active infection.
Do condoms prevent MRSA?
Condoms reduce direct contact with genital skin but do not cover the surrounding areas that most often carry MRSA — the groin, thighs, buttocks and lower abdomen. They provide partial protection at best. Covering any active lesion with a dressing and avoiding skin-to-skin contact until it heals is the more reliable approach.
Should my partner be tested?
A well partner with no symptoms does not routinely need testing. If you have recurrent MRSA infections, however, ask your doctor about screening and simultaneous household or partner decolonisation, since untreated colonisation in a close contact is a common reason for reinfection.
Can MRSA cause genital abscesses?
Yes. Community-acquired MRSA — most often USA300 — is a well-recognised cause of painful buttock, groin, perineal, vulval and scrotal abscesses. These are often mistaken for spider bites or ordinary boils and typically need incision and drainage plus targeted antibiotics.

Is MRSA contagious?

The short answer, contagious period and surface survival.

MRSA bacteria: what it is and how it gets into the body

The organism, resistance, and the routes it uses to enter the body.

Hospitals & surgery

Hand hygiene, chlorhexidine bathing, screening and surgical prophylaxis.

At home & family

Wound care, laundry, cleaning and shared items.

Sports & locker rooms

Skin checks, covered wounds and cleaning shared gear.

References
  1. CDC. MRSA in the community — general information (2024)
  2. Diep B.A. et al., Annals of Internal Medicine. Emergence of multidrug-resistant, community-associated MRSA clone USA300 in men who have sex with men (2008)
  3. Cook H.A. et al., Sexually Transmitted Diseases. Heterosexual transmission of community-associated methicillin-resistant Staphylococcus aureus (2007)
  4. BASHH. United Kingdom national guideline on the sexual health care of men who have sex with men (2019)
  5. Roberts J.C. et al., Clinical Infectious Diseases. Genital and perineal MRSA abscesses in adults (2007)
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