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.
You should avoid sex during chlamydia treatment and for 7 days after starting it, including oral and anal sex. This prevents passing the infection to partners and prevents reinfection between you and an untreated partner. If both you and your partner are being treated, both should wait the full 7 days before having sex again.
Here’s what to know.
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Why Wait?
- Treatment takes time to work — chlamydia can still be present for several days after starting antibiotics
- You could pass the infection to a partner
- You could reinfect each other in a ping-pong effect
- Partners being treated separately need time for their treatment to work too
How Long to Wait
| Situation | Wait Time |
|---|---|
| Single dose treatment (rare) | 7 days after taking dose |
| 7-day doxycycline course | 7 days after starting — which means to the end of the course |
| Partner also being treated | 7 days from when both of you started |
| Partner not yet treated | Until partner has completed 7 days of treatment |
What Counts as “Sex”?
Avoid:
- Vaginal sex
- Anal sex
- Oral sex
- Sharing sex toys
These can all transmit chlamydia during the waiting period.
Condoms During the Waiting Period
Even with condoms, the waiting period still applies. Condoms reduce but don’t eliminate transmission risk, and the safer approach is to avoid sex entirely during this short window.
What About Kissing and Touching?
Kissing, hugging, cuddling and mutual masturbation (without genital contact) are all fine. Chlamydia isn’t transmitted by these activities.
What If We Can’t Wait?
The 7-day rule is a minimum. Having sex before this time risks passing the infection to your partner or being reinfected. Use this time to connect in other ways and consider it a short break.
After the Waiting Period
Once both of you have completed 7 days of treatment and have no symptoms, normal sex can resume. Follow-up testing isn’t routinely required for chlamydia, but retesting 3 months later is recommended to check for reinfection.
What If My Symptoms Don’t Improve?
- Complete the full 7 days of treatment
- If symptoms persist beyond treatment, contact your clinic
- Consider whether you may have been re-exposed
- Additional testing or different antibiotics may be needed
Read more: What is chlamydia? | If a partner has chlamydia | Untreated chlamydia
Frequently Asked Questions
Can I have sex after my first dose?
No. Wait the full 7 days after starting treatment — that’s when you can be confident the infection has been cleared.
Can I masturbate during treatment?
Yes — solo masturbation is fine. The waiting period is about avoiding transmission to partners.
Do I need a test of cure after chlamydia treatment?
Usually not for standard chlamydia. Retesting 3 months later is recommended to check for reinfection.
Related reading
- Abnormal Genital Discharge and Chlamydia
- Can Mycoplasma Genitalium Be Cured?
- Can You Get Chlamydia From Kissing?
- Can You Have Chlamydia and Test Negative?
- Chlamydia and Gay Men: What to Know
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.
