Pelvic pain has dozens of possible causes, ranging from muscle tension and digestive issues to reproductive conditions and nerve problems. Around 15 to 20 percent of women in the U.S. experience chronic pelvic pain at some point, and the condition affects men too, though it’s studied less. The source of your pain depends on where exactly it is, how it started, and what other symptoms come with it.
Reproductive Causes in Women
Several gynecological conditions rank among the most common reasons for pelvic pain in women. Endometriosis, where tissue similar to the uterine lining grows outside the uterus, causes pain that often worsens around your period but can persist throughout the month. Ovarian cysts, fluid-filled sacs that form on or in the ovaries, can cause a dull ache on one side or sharp pain if they rupture or twist. Uterine fibroids, noncancerous growths in the uterus, tend to produce a sense of pressure or heaviness along with heavier periods.
Pelvic inflammatory disease (PID), an infection of the reproductive organs usually linked to sexually transmitted bacteria, brings pain along with unusual discharge, fever, or pain during sex. PID needs prompt treatment because untreated infections can cause lasting damage to the fallopian tubes. Menstrual cramps themselves are also a straightforward cause, though pain that regularly disrupts your daily life or doesn’t respond to over-the-counter pain relievers deserves a closer look.
Pelvic Pain Causes in Men
The most common diagnosis men receive for pelvic pain is chronic pelvic pain syndrome, previously grouped under the umbrella of “prostatitis.” The overwhelming majority of cases fall into what specialists call Type III, where men have recurring or chronic pelvic pain with no identifiable bacterial infection. Symptoms often include pain in the perineum (the area between the scrotum and rectum), discomfort during or after urination, and pain that radiates to the lower back or groin.
Bacterial forms do exist but are far less common. Acute bacterial infections come on suddenly with fever and severe pain, while chronic bacterial infections cause milder, recurring symptoms. Inguinal hernias, where tissue pushes through a weak spot in the abdominal wall near the groin, are another frequent source of pelvic and groin pain in men, especially during lifting, coughing, or straining.
Urinary and Digestive Causes
Your pelvic area houses your bladder, lower intestines, and rectum, so problems in any of these can register as pelvic pain regardless of sex. Urinary tract infections cause burning with urination plus pressure or pain low in the pelvis. Kidney stones can produce intense, wave-like pain that starts in the back and radiates down into the pelvic area, often with blood in the urine.
Interstitial cystitis, a chronic bladder condition, creates persistent pelvic pressure and an urgent, frequent need to urinate. Irritable bowel syndrome and constipation both generate cramping and discomfort in the lower abdomen and pelvis. Appendicitis and diverticulitis are more acute possibilities. Appendicitis typically starts as pain around the belly button that migrates to the lower right side, while diverticulitis usually hits the lower left.
Pelvic Floor Dysfunction
Your pelvic floor is a hammock of muscles stretching between the pubic bone and spine, supporting your bladder, bowel, and reproductive organs. Normally these muscles tighten and relax on demand, similar to clenching and unclenching a fist. In pelvic floor dysfunction, the muscles stay clenched instead of relaxing when they should. This creates ongoing pain in the pelvic region, genitals, or rectum that can exist with or without a bowel movement.
In women, pelvic floor tension often causes pain during intercourse. In men, it can contribute to erectile dysfunction, though that connection is complex. What makes pelvic floor problems tricky is that the symptoms overlap heavily with bladder conditions, prostate issues, and gynecological problems, so it often goes undiagnosed for a while. Pelvic floor physical therapy, where a specialized therapist teaches you to identify and release the tension in these muscles, is the primary treatment. Biofeedback, a technique that uses sensors to show you which muscles are contracting, helps many people learn to relax muscles they didn’t realize they were tightening.
Nerve-Related Pelvic Pain
Pudendal neuralgia occurs when the pudendal nerve, which runs through the pelvis and supplies sensation to the genitals, perineum, and rectum, becomes compressed or irritated. The hallmark is stabbing, burning, or shooting pain that gets worse when you sit and improves when you stand or lie down. Pain tends to build through the day, feeling worse in the evening and better in the morning.
Other symptoms include heightened sensitivity in the area (even putting on underwear can hurt), a swollen feeling in the perineum, urgent need to urinate, painful bowel movements, and difficulty reaching orgasm. Because the symptoms mimic so many other conditions, pudendal neuralgia is typically diagnosed by ruling out other causes first. It affects both men and women.
Warning Signs That Need Urgent Attention
Most pelvic pain turns out to be manageable, but certain combinations of symptoms signal something that needs immediate medical care:
- Sharp, sudden pain that doesn’t improve with rest or over-the-counter pain relief
- Heavy vaginal bleeding, especially soaking through a pad every hour for several hours
- Fever with pelvic pain, which suggests infection
- Blood in your urine or stool, or difficulty urinating or having bowel movements
- Signs of shock like fainting, dizziness, or feeling like you might pass out
- Nausea and vomiting alongside severe pelvic pain
If you’re pregnant, pelvic pain that doesn’t go away when you change positions or rest warrants a call to your provider.
How Pelvic Pain Gets Diagnosed
Because so many structures sit in the pelvis, pinpointing the source often takes a combination of approaches. Blood tests can reveal infection or inflammation. Urine tests check for urinary tract infections or kidney stones. Imaging is where diagnosis usually gets more specific.
Pelvic ultrasound is the most common first step for suspected reproductive causes. A transabdominal ultrasound (over the belly) gives a general view, while a transvaginal ultrasound, where a small probe is inserted into the vagina, provides much more detailed images of the uterus and ovaries. The probe is narrower than a standard speculum, and the exam itself is similar to a gynecological exam. CT scans are particularly useful for identifying kidney stones, appendicitis, and diverticulitis. Pelvic floor MRI can evaluate the muscles of the pelvic floor for disorders like organ prolapse, muscle dysfunction, and structural problems that other imaging misses.
For endometriosis specifically, clinical guidelines from the American College of Obstetricians and Gynecologists now support working toward diagnosis through symptoms and imaging rather than requiring surgery to confirm it, which represents a meaningful shift from earlier practice.
Tracking Symptoms Before Your Appointment
One of the most useful things you can do before seeing a doctor is keep a daily symptom diary for at least one to two weeks. This gives your provider far more information than trying to recall patterns from memory. Track these specifics each day:
- Pain location: middle, left side, or right side of the pelvis
- Pain intensity: rate it 0 to 10 (0 being no pain, 5 moderate, 10 the worst you can imagine)
- Digestive symptoms: painful bowel movements, constipation, or nausea
- Urinary symptoms: pain with urination, urgency, or increased frequency
- Bleeding: note whether it’s spotting, light (1 to 3 pads per day), normal (4 to 6), or heavy (more than 6)
- What makes it better or worse: sitting, standing, lying down, eating, exercise, time of day
- Pain medication: what you took and whether it helped
Patterns in the data often point directly to a cause. Pain that lines up with your menstrual cycle suggests endometriosis or other hormonal causes. Pain that worsens with sitting points toward pudendal neuralgia or pelvic floor issues. Pain linked to bowel movements or urination narrows the search toward digestive or urinary sources. The more specific you can be, the faster the diagnostic process moves.