Short answer
Repeat STI positivity after treatment is reinfection until proven otherwise: new or incompletely treated exposures explain the large majority, with true treatment failure a minority requiring specialized proof.
The distinction decides everything downstream, networks versus regimens, so clinicians work it through in order rather than guessing.
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See Tests & Prices →Reinfection signatures patients recognize
Sexual activity before treatment completed, untreated or new partners since therapy, the same organism reappearing after documented clearance, and high community prevalence around you.
Response: retreat plus rigorous partner-network treatment, not stronger drugs.
Most “the antibiotics didn’t work” stories end here. The drugs worked; the network re-supplied the organism.
Partner treatment mechanics are covered in What Is Partner Notification for STIs?.
Failure signatures clinicians verify
Verified adherence with no re-exposure, persistent organism detection past clearance windows, and susceptibility shifts on testing.
Response: cultures, resistance testing, alternative clinician-directed regimens, specialist referral, and surveillance reporting.
Patients contribute by documenting adherence honestly (missed doses, vomiting, interactions) and bringing complete exposure timelines. The history is what separates the two pathways.
Why the distinction matters beyond your case
Reinfection protocols fix networks; failure protocols fix regimens.
Swapping them wastes drugs on network problems or lectures on pharmacologic ones. And misses resistance signals surveillance needs.
The broader resistance context is explained in Gonorrhea Testing: Samples and Accuracy, where cultures reveal which drugs still work.
Prevention architecture making repeats exceptional
Simultaneous partner therapy, abstinence through clearance, scheduled retesting, and exposure reduction convert repeat episodes from inevitable to exceptional.
Each element is simple; the power is in all of them together, every time.
When to seek care
For any repeat positive (bring full exposure and partner timelines), with adherence documentation, and urgently for disseminated or severe recurrent presentations.