Soreness after sex is extremely common. About 3 out of 4 women report painful intercourse at least once in their lives, and between 10% and 20% experience it on a recurring basis. Men can experience it too, with 1% to 5% reporting pain during or after sex. The causes range from simple friction to underlying conditions worth investigating, and most of them are very treatable once you know what’s going on.
Friction and Insufficient Lubrication
The most common reason for post-sex soreness is straightforward: not enough lubrication during intercourse. When vaginal or skin tissue doesn’t have adequate moisture, friction creates microscopic tears in the tissue. These tiny abrasions are too small to see but large enough to cause a stinging, raw, or burning sensation that can linger for hours or even a day or two afterward. The same applies to anal tissue, which doesn’t self-lubricate at all.
Several things reduce natural lubrication: rushing through foreplay, dehydration, certain medications (antihistamines, antidepressants, and hormonal birth control are frequent culprits), stress, and alcohol. A water-based or silicone-based lubricant is the simplest fix. If you’re using condoms, stick with water-based options, since oil-based lubricants can break down latex.
Pelvic Floor Muscle Tension
Your pelvic floor is a group of muscles that stretches like a hammock across the base of your pelvis. During sex, these muscles are actively working. If they’re chronically tight or prone to spasms, a condition called hypertonic pelvic floor, they can leave you with a deep ache in your pelvis, lower back, or hips after sex.
This kind of soreness feels muscular rather than skin-level. It’s similar to the ache you’d get from overworking any other muscle group. People with hypertonic pelvic floors often notice other signs too: difficulty fully emptying the bladder, constipation, or a general sense of pressure in the pelvic area even outside of sex. Stress, anxiety, and even habitual posture can keep these muscles in a state of constant low-grade contraction. Pelvic floor physical therapy, which involves learning to consciously relax and coordinate these muscles, is the primary treatment and tends to be very effective.
Deep Internal Soreness
If the pain feels deep inside rather than at the surface, it often comes from pressure against internal structures during penetration. This is sometimes called collision pain, and it typically gets worse in certain positions, especially those that allow deeper penetration.
During the menstrual cycle, the cervix shifts position. It sits lower in the days around your period and higher around ovulation. When it’s lower, it’s easier for a partner or toy to bump against it, which can cause a sharp ache during sex that turns into a dull soreness afterward. Adjusting positions or angle is usually enough to prevent it.
Persistent deep pain, however, can signal something more involved. Endometriosis, where tissue similar to the uterine lining grows in places it shouldn’t (like the fallopian tubes or abdominal cavity), is one of the more common causes. Ovarian cysts, pelvic inflammatory disease, and conditions affecting the bladder or bowel can also produce deep post-sex soreness. If this type of pain happens regularly regardless of position, it’s worth getting evaluated.
Hormonal Changes That Thin Vaginal Tissue
Estrogen keeps vaginal tissue thick, elastic, and well-moisturized. When estrogen levels drop, the vaginal lining becomes thinner, drier, and more fragile, making it much more susceptible to tearing and irritation during intercourse. The result is soreness that can take longer to resolve because the tissue itself has less capacity to bounce back.
Menopause is the most well-known cause, but it’s not the only one. Breastfeeding temporarily suppresses estrogen. So can certain cancer treatments and surgical removal of the ovaries. Even some types of hormonal birth control can lower estrogen enough to cause noticeable dryness in some people. Lubricants help in the short term. For ongoing issues, topical estrogen treatments can restore tissue thickness over time, though the timeline varies depending on severity.
Infections Worth Ruling Out
Some sexually transmitted infections cause soreness that you might only notice during or after sex. Chlamydia, for instance, can cause vaginal pain during intercourse and is notoriously sneaky because it often produces no other obvious symptoms for weeks or months. Yeast infections and urinary tract infections can also make sex uncomfortable and leave you sore afterward, with the added clues of itching, unusual discharge, or burning during urination.
If soreness after sex is new and accompanied by any change in discharge (color, smell, or amount), burning when you pee, spotting between periods, or fever, an infection is a strong possibility. Most of these are easily treated once identified.
General Muscular Soreness
Sometimes the answer is simpler than any of the above. Sex is physical activity. Vigorous or prolonged sessions engage your core, thighs, glutes, hip flexors, and back. If you’re in a position you don’t normally hold, or if the session is longer or more intense than usual, you can end up with garden-variety muscle soreness the next day, the same way you would after an unfamiliar workout. This type of soreness is diffuse rather than localized to one spot, and it resolves on its own within a day or two.
What Helps With Recovery
For surface-level soreness from friction or microtears, a warm sitz bath (sitting in a few inches of warm water for 10 to 15 minutes) soothes irritated tissue. A cool compress wrapped in a cloth can help if things feel swollen or inflamed. Wearing loose, breathable underwear and avoiding scented products near the area gives tissue a chance to heal without further irritation.
For muscular soreness, whether pelvic floor or general body aches, gentle stretching and a warm bath help relax the muscles. Over-the-counter anti-inflammatory pain relievers can take the edge off. If pelvic floor tension is a recurring issue, targeted stretches like deep squats and child’s pose can help between sessions, though working with a pelvic floor therapist gives you a more tailored approach.
For ongoing or worsening soreness, keep a mental note of when it happens, what kind of pain it is (sharp, burning, deep, or aching), and whether it correlates with your cycle, specific positions, or other symptoms. That information makes it much easier to pinpoint the cause, whether on your own or with a healthcare provider’s help.