References UK clinical guidance from the NHS, the British HIV Association (BHIVA), and the British Association for Sexual Health and HIV (BASHH). Last updated: April 2026.
No. You cannot give yourself an STI through solo masturbation. STIs are transmitted between people, not generated spontaneously. If you don’t already have an infection, masturbating cannot create one.
The only scenarios where masturbation-related activities carry STI risk involve shared sex toys or mutual masturbation with an infected partner.
Why Solo Masturbation Is Safe
STIs are caused by bacteria, viruses, or parasites that pass from one person to another during sexual contact. Your own hands touching your own genitals cannot introduce a new pathogen that isn’t already there. Even if your hands aren’t perfectly clean, the organisms you’d introduce are your own normal flora, not STI-causing pathogens.
When There Is a Small Risk
If a sex toy is used by one person and then immediately used by another without cleaning or a new condom, STIs can potentially be transmitted. Herpes, chlamydia, gonorrhoea, and HPV can survive on toy surfaces briefly. Clean toys thoroughly between users or use a condom on them.
Mutual masturbation
Touching a partner’s genitals and then your own (or vice versa) carries a very low but theoretical risk for herpes and HPV. The risk is much lower than penetrative sex. Washing hands between touching different people’s genitals eliminates this risk.
Frequently Asked Questions
Can masturbation cause a yeast infection?
Not directly. However, using irritating lubricants, soap, or objects can disrupt vaginal flora and potentially trigger thrush. Use water-based lubricants and avoid inserting objects not designed for the purpose.
Can frequent masturbation cause UTIs?
In women, there’s a small risk if bacteria are introduced from the anal area. Washing hands before masturbating and urinating afterwards reduces this risk.
Do I need an STI test if I’ve only ever masturbated?
If you’ve never had sexual contact with another person, you do not need an STI test. STIs require person-to-person transmission.
Related reading
- Blood Test for Syphilis, Hepatitis B and Hepatitis C
- Can You Get an STI From Being Fingered?
- Can You Catch an STI From a Toilet Seat?
- Can You Clear HPV Once You Have It?
- Can You Die From Hepatitis B?
Sources
- NHS — Sexual health conditions
- BASHH — UK clinical guidelines for STI management
- British HIV Association (BHIVA) — HIV treatment guidelines
- Terrence Higgins Trust — sexual health information
- UK Health Security Agency — STI surveillance data
Steve Page is a recognised expert on Sexually Transmitted Diseases (STDs) and STD treatments, having published numerous articles in peer-reviewed journals and presented his research at conferences around the world. He has an in-depth understanding of the latest medical research on STDs, and is an advocate for the development of new treatments and protocols to improve the health of those affected. In addition to his research, he has dedicated his career to understanding the causes and symptoms of STDs, as well as how to best treat those impacted.
