Burning after sex, the common causes and what actually helps

The usual suspects, at a glance.

Cause	What it tends to feel like	What usually helps
Friction and dryness	Raw, stinging, worse with longer sex	More arousal time, more lube, reapply
Lube with glycerin or high osmolality	Sting soon after the lube goes on	Switch to a low osmolality or silicone lube
Latex	Itching, redness, swelling after condom use	Polyurethane or polyisoprene condoms
Spermicide (nonoxynol-9)	Burning and irritation after spermicide or spermicidal condoms	Stop using it; choose plain condoms
Semen allergy (rare)	Burning, itching or swelling within about 30 minutes	Condoms, then an allergist
Yeast	Itching, burning, thick white discharge	See a clinician to confirm before treating
Bacterial vaginosis	Thin gray discharge, fishy smell, often after sex	See a clinician; it needs prescription treatment
UTI	Burning when you pee, urgency, cloudy urine	See a clinician
STIs	Varies; sores, discharge, or nothing at all	Get tested
Vestibulodynia	Burning at the opening, with touch or pressure	Clinician and pelvic floor physical therapy
Menopause (GSM)	Dry, thin, easily irritated tissue	Moisturizer, lube, and a clinician conversation

Friction and dryness.

This is the big one. Cleveland Clinic lists insufficient lubrication as a primary cause of painful sex. Natural lubrication depends on arousal, and arousal takes time. Stress, a fast start, a new medicine or a hormone shift can all leave you short. The result is tiny surface abrasions that sting afterward, especially when you pee. The fix is slower starts, plenty of lube and reapplying before you need to.

Lube that stings.

Some lubes irritate the very tissue they are meant to protect. Glycerin, propylene glycol, warming agents, flavors and fragrance are the usual reasons. Many popular water based lubes are also far saltier than the body, measured as osmolality, and that pulls water out of the vaginal lining. ACOG names lubricants alongside perfumed soaps and douches as common causes of contact dermatitis on the vulva. If the sting starts right after the lube goes on, the lube is your first suspect. Our lube osmolality explainer covers the numbers.

Condoms and latex.

Mayo Clinic lists condoms among the latex products that commonly trigger latex allergy, which causes itching, redness and hives, and in rare cases a severe reaction. If burning shows up only with latex condoms, try non-latex condoms such as polyurethane or polyisoprene instead. Keep using condoms. The goal is a different material, not less protection.

Spermicide.

Nonoxynol-9 is the active ingredient in most spermicides and in some condoms. The CDC notes it might disrupt the genital lining. That irritation shows up as burning for a lot of people. Check the box: "spermicidal" or "with nonoxynol-9" on the label is the clue.

Semen allergy.

Rare, real, and easy to test at home. Cleveland Clinic describes itching, redness, swelling and burning that usually start within half an hour of contact and can last hours to days. The tell is the condom test. If symptoms vanish with a condom and come back without one, semen is the likely trigger, and an allergist can confirm it. Trouble breathing or swelling of the lips or tongue is an emergency.

Infections.

Yeast, bacterial vaginosis and trichomoniasis can all make sex burn, and sex can make each of them more noticeable. The CDC lists itching, burning and soreness among the symptoms of trichomoniasis. Herpes can cause painful sores. Chlamydia often causes nothing at all, or burning when you pee. The overlap is the problem: these feel alike and are treated differently, so guessing with an over the counter product can delay the right treatment. A swab answers it in one visit. A UTI is the other common one, covered in can lube cause a UTI.

Vestibulodynia and pelvic floor pain.

When burning sits right at the opening and happens every time, with touch or pressure, it may be vestibulodynia, a form of vulvodynia. Cleveland Clinic and ACOG both list vulvodynia as a cause of painful sex, and pelvic floor dysfunction often comes with it. This is not something lube fixes. It is a diagnosis, and pelvic floor physical therapy is a standard part of treatment. More in lube for pelvic pain.

Menopause.

Falling estrogen thins the vaginal lining, and thinner tissue tears and stings more easily. Cleveland Clinic lists genitourinary syndrome of menopause (GSM) as a cause of painful sex. A moisturizer on a schedule, a gentle lube during sex, and a conversation with a clinician about prescription options usually help. See vaginal dryness causes.

What helps tonight.

• Rinse the vulva with plain lukewarm water. No soap inside, no wipes.
• Pat dry and wear loose cotton underwear, or none.
• Pee if you have not. It flushes the urethra.
• A cool compress on the outside can take the edge off.
• Do not start an over the counter yeast treatment unless a clinician has diagnosed yeast before and this feels identical.

What prevents it next time.

Slow down, use more lube than you think you need, and pick one with published numbers. A water based lube near the body's own osmolality, or a plain silicone lube, is the least likely to sting. Skip warming, tingling, flavored and scented formulas. If you suspect latex or spermicide, change one thing at a time so you know which one it was.

Good Clean Love Almost Naked is iso-osmolar and aloe based. Sliquid Organics Natural has one of the lowest published osmolality values we track. Uberlube is silicone, so osmolality does not apply, and it lasts. Silicone lube is not for silicone toys.

When to see a clinician.

See a clinician if you have sores, blisters or bumps, a change in discharge or smell, fever or chills, bleeding that is not your period, burning that lasts more than a day or two, or burning every time you have sex. Also go if you have a new partner and have not been tested. Most causes of burning are simple to diagnose and treat once someone looks. This page is general information, not medical advice.