Vaginal tear after sex or herpes? How to tell

Author: Aunt Vadge
Qualified Naturopath | BHSc(N)

Last reviewed: July 4, 2026

Hi Aunt Vadge,

I’ve been having unprotected sex with my boyfriend since the beginning of September this year and hadn’t noticed anything abnormal until now. After having sex on Saturday (5 days ago) I noticed a small tear on the bottom of my vagina near the perineum, which at the time I thought nothing of.

We had sex again last night, and now there look to be 2 splits in that same area (1 small, 1 rather big) that are pretty deep and a little painful and itchy. I am absolutely scared to death to see a doctor in fear of it being herpes, which is why I’m writing to you here. They don’t seem to be healing very fast and I’m really freaked out.

Please help!
Scared
Age 18, Canada

Hi Scared,

Let me talk you down off the ledge, because this really doesn’t sound like herpes. Herpes turns up as crops of small, painful blisters that break open into little ulcers, usually with a rotten, flu-like feeling the first time around. What you’re describing, clean splits right at the bottom of your vaginal opening, exactly where the skin tears from friction, is a completely different thing. That’s a sex injury, not a virus.

And a thing that catches almost everyone out: a standard STI screen doesn’t even test for herpes. They only check for it if you specifically ask, or if there’s an active sore to swab. So marching in for a routine panel wouldn’t ‘clear’ you of herpes anyway. If you ever really wanted to know for sure, the test is a swab taken from an actual sore while it’s there, and right now you don’t have sores, you have tears.

So let’s heal these and stop them happening again. Minor cuts and tears mend well with a moisturising, vulva and vagina-friendly cuts cream.

In the meantime

No sex, no fingering, no masturbating. Hands off entirely, except to rinse gently with warm water. The splits need to be left completely alone to knit back together, and every time you reopen them the clock starts again. Cuts down there are like cuts anywhere else: they sting a bit and itch as they heal, but they mend fast and don’t scar.

Here’s why it happened. The skin at the vaginal opening (the posterior fourchette) is delicate, and one enthusiastic move with a hard penis and not enough lube will split it in a heartbeat. It is incredibly common. Once you’re fully healed, slow right down, use loads of lube, and pay attention to what that spot is telling you so you can dodge the next one. There’s more in our guide to healing cuts and tears from sex.

Most of these split-at-the-bottom letters I get are exactly your story: good sex, not quite enough lube or slowing down, and a small tear right at the posterior fourchette that heals up fine on its own. The ones worth keeping an eye on are the tears that keep coming back on gentle, well-lubed sex, because then something else is usually going on.

I know the doctor feels terrifying right now, but don’t let the herpes fear talk you out of care you might actually need. If these deep splits still aren’t healing after a week or so, keep tearing open, or start looking infected (more pain, spreading redness, pus, a fever), get them looked at. If you can get to a confidential sexual health clinic, that counts too, so you don’t have to face your family doctor if that’s the sticking point. Until then, the leave-it-alone-and-let-it-heal plan above is yours to run at home for free.

Two last things. Please sort out some contraception, because unprotected sex leaves you open to both pregnancy and infections, and condoms with lube would also give those tears less friction to deal with. And on check-ups: you do not need annual pap smears at 18. Cervical screening usually starts around age 25, and an STI check is worth doing when you’ve got symptoms or a new partner, not on a nervous loop. The real goal is finding a doctor you trust so none of this feels so frightening next time.

Best,
Aunt Vadge

This is general information and not a substitute for personalised medical advice.