Suddenly too wet during sex? The likely causes

Author: Aunt Vadge
Qualified Naturopath | BHSc(N)

Last reviewed: June 26, 2026

Hello Aunt Vadge,

For about a year, every time I have intercourse with my partner I get too wet almost immediately – a watery discharge that doesn’t feel normal. We have to stop, because there’s no friction at all.

I’ve had the same partner for 10 years, and this has only happened in the last year. I’ve been tested for STIs and for BV, and both were clear.

What is wrong with me?

Regards,
Drenched
Age 32, Sweden

Hello Drenched,

The reassuring thing first: a sudden increase in watery wetness during sex, with clear STI and BV tests, is almost always benign – mechanical or hormonal, not a sign of disease.

The most likely, and most easily checked, culprit is your cervix – a very common, harmless thing called cervical ectropion.

It’s easy to miss, because the standard swabs you’ve had can’t detect it. It needs a quick look with a speculum.

Let me walk you through it, because there are a few threads worth pulling on.

First, what changed about a year ago?

This is the most useful thing to sit with, because your body was doing something different before.

Cast your mind back to when it started, and see if anything lines up:

Did you start, stop, or change a hormonal contraceptive (the pill, a hormonal IUD, an implant)?
Have you been pregnant or had a baby in that window?
Any other hormonal shift – coming off breastfeeding, a new medication, big changes in weight or cycle?

And one reframe worth considering: is it really more fluid than before? Or has sex started to feel slippery and loose with the same amount?

That distinction points in two quite different directions, as you’ll see.

The most likely cause: cervical ectropion

Cervical ectropion is when the soft, glandular cells that normally line the inside of your cervical canal sit out on the surface of the cervix instead.

Those cells are mucus-makers. More of them on the surface means more watery, clear discharge – easily stirred up by the friction and engorgement of sex.¹

Here’s why it fits you so well. Ectropion is driven by oestrogen, so it’s common in younger women – and especially when oestrogen runs higher than usual, like on the combined pill or in pregnancy.¹

It’s completely benign. And crucially, it is not an infection – which is exactly why your STI and BV tests came back clear.

One thing to flag to your clinician: ectropion can sometimes cause light spotting after sex. If you ever notice that, it’s worth a cervical check anyway.

In our clinic, when sex suddenly turns too wet and every swab comes back clear, ectropion is one of the first things we want ruled out.

We don’t examine the cervix ourselves – that’s a quick speculum check with a doctor. But once it’s been looked at, we can help with the bigger picture: whether a hormonal shift (like the pill) is feeding it, and supporting your vaginal health alongside whatever your doctor advises.

A second thread: more lubrication from a hormonal shift

The wetness of arousal isn’t made by a gland squirting fluid. It’s plasma that seeps through the wall of your vagina when the tissue fills with blood (engorges) during arousal.²

The more blood flow and engorgement, the more of this watery transudate you make.

Oestrogen turns this system up. So if something raised your oestrogen about a year ago – a new pill, pregnancy, or a natural shift – it can increase both your arousal lubrication and your everyday discharge.

A single hormonal change can quietly drive both this and the ectropion above.

(Want the full mechanism? Our piece on how the vagina gets wet (or doesn’t) explains it from the dryness angle – but the plumbing is the same.)

A third thread: maybe it’s the friction, not the fluid

This one’s worth sitting with if you had a baby in the last year.

Friction during sex depends on the tone and grip of the vaginal walls as much as on how wet you are.

If your pelvic floor and vaginal walls have changed – very common after childbirth – then your normal amount of lubrication can suddenly feel like ‘too much’, because there’s less to grip onto.

In other words, the wetness might be a red herring, and the real change is friction.

If that rings true, a pelvic floor physiotherapist is the right person to assess your tone and help you rebuild it. It’s very treatable.

One thing worth ruling out

For completeness: a watery gush during sex can occasionally be a small amount of urine leaking. It’s more common than people think, and nothing to be embarrassed about.

It doesn’t quite match how you describe this – you’re describing discharge, not leakage, with none of the usual signs.

But if you ever notice the fluid smells or looks like urine, or you leak at other times (a cough, a sneeze, a workout), mention it to your clinician so it can be checked too.

What I’d do next

This has two parts.

For anything that needs a physical or internal exam – a speculum check of your cervix, or a pelvic floor assessment – see a doctor, gynaecologist, sexual medicine or women’s health clinic, or a pelvic floor physiotherapist. We don’t do physical exams ourselves.

For the other half – piecing together what shifted a year ago, and working on the hormonal and root-caus