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.
Not all STIs can be cured, but most can be effectively treated or managed. Bacterial STIs — chlamydia, gonorrhoea, syphilis and mycoplasma — are generally curable with antibiotics. Viral STIs — HIV, herpes, HPV, hepatitis B — are usually lifelong but can be controlled or suppressed. One major exception: modern medicine can now cure hepatitis C.
Here’s a clear breakdown.
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Curable STIs
| STI | Cure? | Treatment |
|---|---|---|
| Chlamydia | Yes | Doxycycline 7 days |
| Gonorrhoea | Yes | Ceftriaxone injection |
| Syphilis | Yes | Penicillin injection |
| Mycoplasma genitalium | Yes | Doxycycline + azithromycin or moxifloxacin |
| Trichomoniasis | Yes | Metronidazole |
| Hepatitis C | Yes (in over 95% of cases) | Direct-acting antivirals, 8-12 weeks |
| Pubic lice / scabies | Yes | Topical treatment |
Manageable But Not Routinely Curable
| STI | What Treatment Does |
|---|---|
| HIV | Suppresses the virus to undetectable levels; lifelong treatment needed |
| Herpes (HSV) | Antiviral reduces outbreaks and transmission; virus remains in the body |
| HPV | Immune system usually clears; warts and cancers treated symptomatically |
| Hepatitis B | Suppressive antiviral treatment; functional cure is uncommon |
The Big Change: Hepatitis C
Hepatitis C was once considered a lifelong infection. Since the mid-2010s, direct-acting antiviral (DAA) treatment has made it curable in over 95% of cases. Treatment is a simple course of tablets over 8-12 weeks, and it’s free on the NHS.
HIV: Not Curable But Manageable
There is no routine cure for HIV, but modern treatment is so effective that people with HIV can expect a near-normal lifespan. A handful of people have been “functionally cured” through stem cell transplants for other conditions — these are exceptional cases, not routine medicine.
Herpes: Lifelong But Controllable
Once you have herpes, the virus remains in the body for life. But antiviral treatment reduces the frequency and severity of outbreaks, and daily suppressive therapy can significantly reduce transmission risk. Most people with herpes live normal lives.
HPV: Often Cleared by the Body
Most HPV infections clear naturally within 1-2 years. There’s no drug that cures HPV itself, but symptoms (warts, cell changes) can be treated. Vaccination prevents most harmful types.
Hepatitis B: Long-Term Management
Acute hepatitis B usually clears on its own in adults. When it becomes chronic, it’s managed with suppressive antivirals. A small proportion achieve functional cure (loss of surface antigen) but this is uncommon.
Why Curability Isn’t Everything
Even “incurable” STIs are manageable:
- HIV treatment allows normal life expectancy
- Herpes treatment reduces outbreaks and transmission
- HPV vaccination prevents most serious outcomes
- Hepatitis B treatment prevents liver damage
Early diagnosis makes all these conditions much easier to manage.
Read more: Untreated STIs | HIV vs AIDS | Can HIV be cured?
Frequently Asked Questions
Is HIV ever curable?
There is no routine cure yet. Research is active. For now, lifelong treatment is the standard.
Does treatment stop me passing on an STI?
For most bacterial STIs, yes — once treatment is complete. For HIV, effective treatment with an undetectable viral load stops sexual transmission (U=U).
Can I catch a cured STI again?
Yes. Treatment doesn’t give immunity. Reinfection is possible with each new exposure.
Related reading
- A to Z of Sex: Sexual Health Terms Explained
- Alcohol and HIV: What You Need to Know
- Anxiety and HIV: Coping and Getting Support
- Blood Problems and HIV: Anaemia, Low Platelets and More
- Can HIV Be Cured? Where the Science Stands
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.
