STI testing can make sense after a new partner, possible exposure, symptoms, or simply when you haven’t been tested in a while.
By Nick Brennan · Last revised:
October 2026
You start seeing someone new.
A date or two in, before you’ve had sex, they ask when you were last tested. And you realize you don’t actually know.
Maybe it was a year ago. Maybe longer. Nothing happened that made you particularly worried, so getting tested just hasn’t been on your mind.
But now that someone has asked, you realize it's been so long you're not sure where things stand today.
That alone can be a perfectly reasonable reason to think about getting tested.
You Don’t Need a Scare to Have a Reason
It’s easy to think of STI testing as something you do when there’s an obvious reason to worry.
But there are less obvious reasons too.
Maybe you started sleeping with someone new and neither of you has been tested recently. Maybe you’re dating again after a long relationship. Maybe you or your partner are now seeing other people.
Or maybe it’s simply been long enough that your last negative result doesn’t tell you much about your sex life today.
Testing doesn’t have to be driven by fear.
It can also be something you do because your sex life changed and you’d rather know than guess.
So How Often Should You Get Tested?
There isn’t one schedule that makes sense for everyone.
Someone who’s been in the same monogamous relationship for years isn’t necessarily going to think about testing the same way as someone who’s regularly having sex with new partners.
How often testing makes sense can depend on who you’re having sex with, how many partners you have, what kind of sex you’re having, whether condoms are part of the picture, and other parts of your health and sex life.
If your sex life has changed or you’re unsure whether regular testing makes sense for you, that’s a perfectly normal thing to ask your doctor or a sexual-health clinic.
What's going on in your sex life can matter more than how much time has passed since your last test.
Some Situations Call for More Attention
There’s also a difference between testing because you want to know where things stand and testing because something specific happened.
Maybe a condom broke with someone whose STI status you don’t know.
Maybe someone you had sex with tells you they tested positive.
Or maybe you develop a sore, unusual discharge, burning when you pee, testicular pain, or something else that clearly feels different.
Those situations give you a much clearer reason to get checked.
That doesn’t mean a symptom automatically points to an STI.
But if something feels wrong, or you have a real reason to think you may have been exposed to something, getting checked can make more sense than trying to reason your way through it at home.
And occasionally, the most important question isn’t whether to get tested.
If you think you may have been exposed to HIV within the last 72 hours, for example, medication called PEP may help prevent infection if it’s started quickly. That’s a situation where talking to a doctor quickly matters more than waiting for a later test to give you an answer.
Deciding to Test Is Only the First Question
Once you decide getting tested makes sense, there are still two things that can change what the results actually tell you.
The first is when you test.
If you’re testing because of something that happened recently, an infection may not show up immediately. That means you can test negative simply because you tested too soon.
The second is what parts of your body were involved.
If you had oral or anal sex, for example, urine and blood alone may not answer everything you want to know. The STI test you need can depend on the sex you had.
You don’t need to sort all of that out before you make an appointment or order a test.
You just want to be specific about why you’re getting tested.
“I started seeing someone new and neither of us has been tested recently” is useful information.
So is, “I had sex three days ago and I’m worried I may have been exposed to something.”
Or, “I’ve been having oral and anal sex and I’m not sure what I should be tested for.”
That gives your doctor a much better idea of what you actually need to be tested for.
You Don’t Have to Wait Until You’re Worried Enough
One of the easiest ways to put off STI testing is to keep asking whether your situation is serious enough to justify it.
But that’s probably the wrong threshold.
You may have a clear reason, like symptoms or a specific reason to think you were exposed to something.
You may have a routine that makes sense for the kind of sex you’re having.
Or you may simply realize that enough has changed since your last test that knowing your current status would be useful.
None of those require panic.
The better question is whether testing would give you information you actually want or need.
If it would, you don’t need a bigger reason than that.
Practical note: If at-home testing makes sense for your situation, an affordable option with multi-site testing available is here. FSA and HSA cards are accepted, and results are reviewed by a qualified professional before being released to your private portal.
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