STI Testing on PrEP: What You Need to Know

PrEP is an effective tool for reducing HIV risk, but it does not prevent other sexually transmitted infections (STIs). Routine STI testing helps identify infections that may have no symptoms and keeps your sexual health plan complete.

If you Get PrEP Online, regular testing and follow-up care should remain part of your prevention routine.

How Often Should You Get STI Testing While on PrEP?

A common baseline in many PrEP care models is STI screening every 3 months. However, your clinician may recommend a different schedule based on your symptoms, exposure, partner changes, recent STI history, and local guidance.

If you are unsure, follow your PrEP provider’s recommended testing schedule rather than waiting for symptoms.

What Does STI Testing Include?

STI screening is not always a single test. Depending on your sexual exposure, testing may include:

• Urine or genital testing for infections such as chlamydia and gonorrhea
• Throat swabs after relevant oral exposure
• Rectal swabs after relevant anal exposure
• Blood tests for certain infections

Testing should reflect exposure sites because testing only one location may miss an infection elsewhere.

When Should You Test More Frequently?

You may need additional testing if:

• You have new or multiple partners
• Your exposure patterns change
• You do not consistently use barriers
• You or a partner recently had an STI
• A partner tells you they tested positive

If you develop symptoms such as sores, discharge, burning, rash, or pelvic pain, or have a known exposure, contact a healthcare provider rather than waiting for your next routine test.

How STI Testing Fits Into PrEP Care

Regular PrEP follow-ups commonly include:

• HIV testing
• STI screening
• Medication and adherence reviews
• Prescription or refill management

This predictable PrEP for HIV prevention care rhythm makes testing easier to maintain and helps identify issues early.

How to Stay Consistent With Testing

Simple systems can make routine testing easier:

• Set reminders around your PrEP refills
• Maintain a testing calendar
• Ask for site-appropriate testing based on your exposure
• Keep follow-up care with a provider who can coordinate testing and treatment

Telehealth and online services may also help coordinate lab orders, follow-ups, and treatment when appropriate.