Women's health

Endometriosis Symptoms: What They Feel Like and When to Get Evaluated

Save

Endometriosis is a condition in which tissue similar to the uterine lining grows outside the uterus, causing painful periods, chronic pelvic pain, painful sex, and sometimes difficulty conceiving. Symptoms vary widely and overlap with other conditions such as IBS, which is why diagnosis is often delayed by several years. Period pain that disrupts daily life is a reason to seek evaluation — not something to accept as normal.

Last updated: July 2026History

Talk to a clinician

A women's health clinician

Gale can help you find one in your state and request a visit.

Find care →

What are the main symptoms of endometriosis?

The most common symptoms include:

  • Dysmenorrhea (painful periods) — often described as cramping far more severe than typical period pain, sometimes requiring strong pain medication or time off work or school 1
  • Pelvic pain outside of periods — may be constant, intermittent, or cyclical
  • Dyspareunia (pain during or after sex) — particularly with deep penetration
  • Dyschezia (pain with bowel movements) — more common around the time of menstruation
  • Dysuria (pain or urgency with urination) — also more pronounced during periods
  • Heavy menstrual bleeding (menorrhagia) — sometimes with clotting
  • Fatigue — disproportionate to sleep, commonly reported though less specific to endometriosis

The severity of symptoms does not always correspond to the extent of disease. Some people have extensive endometriosis with minimal symptoms; others have significant pain with relatively small amounts of affected tissue 1.

What symptoms are commonly missed or dismissed?

Many people with endometriosis are told for years that their pain is normal, that they are overreacting, or that nothing is structurally wrong. Painful periods are common, but pain that significantly disrupts daily life is not something you simply need to accept.

Gastrointestinal symptoms — bloating (sometimes called 'endo belly'), changes in bowel habits around menstruation, and cramping — are common and frequently lead to a misdiagnosis of irritable bowel syndrome (IBS). IBS and endometriosis can coexist, but bowel symptoms that worsen specifically around menstruation are a clinical clue pointing toward endometriosis 2.

Urinary symptoms can be mistaken for recurrent urinary tract infections. Back pain radiating down the legs is present in some people. Some people have no notable pain at all and discover endometriosis only when investigating difficulty conceiving 1.

Why does endometriosis take so long to diagnose?

The average time from first symptoms to a confirmed diagnosis has historically been long — in some populations, several years. This delay has multiple causes:

  • Symptoms overlap with common conditions including IBS, pelvic inflammatory disease, and functional menstrual pain 2
  • Painful periods are often normalized rather than investigated
  • Definitive diagnosis requires laparoscopy — a surgical procedure — which is not a first-line step
  • Imaging tests (ultrasound and MRI) can detect some features of endometriosis, particularly ovarian cysts (endometriomas), but cannot rule out the condition 1

A skilled clinician can often make a clinical diagnosis based on history and physical examination before proceeding to imaging or surgery. Getting an evaluation does not commit you to surgery — it opens access to treatment options 1.

How is endometriosis treated?

Endometriosis has no cure, but effective management exists. Approaches are tailored to symptom severity, fertility goals, and individual preference 1:

Hormonal therapies — including combined contraceptive pills, progestin-only methods, hormonal IUDs, and GnRH agonists — can suppress the condition and reduce pain. For dysmenorrhea, NSAIDs (such as ibuprofen, used as directed by a clinician) are a standard first-line approach for mild to moderate pain.

Surgery (laparoscopy) is both the definitive diagnostic test and the primary surgical treatment — it allows direct visualization, biopsy, and removal or ablation of lesions. Surgery is typically considered when symptoms are severe, hormonal treatment has not been effective, or fertility preservation is a priority.

Fertility considerations: Endometriosis is a significant cause of infertility. If conception is a goal, early evaluation and treatment planning — including possible referral to a reproductive specialist — is important [1, 3].

What other conditions can cause similar symptoms?

Because endometriosis symptoms overlap with several other conditions, a thoughtful differential diagnosis is part of the evaluation:

  • Adenomyosis — endometrial-like tissue within the muscular wall of the uterus; can coexist with endometriosis; causes heavy, painful periods and uterine tenderness
  • Ovarian cysts (functional or endometrioma) — endometriomas, sometimes called 'chocolate cysts,' are ovarian cysts filled with old blood that are specifically associated with endometriosis
  • Irritable bowel syndrome (IBS) — shares GI symptoms but lacks the cyclical pattern tied to menstruation 2
  • Pelvic inflammatory disease (PID) — important to rule out, particularly in people with fever, unusual discharge, or recent STI exposure 3

Having one of these conditions does not exclude another; IBS and endometriosis, for example, frequently coexist.

Common questions

A clinical diagnosis based on symptoms and examination is possible, and many clinicians will offer empirical treatment (such as hormonal therapy) based on a strong clinical picture. A definitive confirmed diagnosis requires laparoscopy — a surgical procedure that allows direct visualization and biopsy of lesions. Ultrasound and MRI can support the diagnosis, especially if an ovarian endometrioma is found, but cannot rule it out.

Not always, but it is a leading cause of difficulty conceiving. Many people with endometriosis conceive without medical assistance. For those who have difficulty, options including hormonal treatment, surgical removal of lesions, and assisted reproduction may be considered. Early evaluation is important if conception is a goal.

If your period pain requires you to miss work, school, or normal activities; if it is not controlled by over-the-counter pain medication; or if it has been worsening over time, it is worth a clinical evaluation. Period pain that disrupts daily life is not something you need to accept without investigation.

Yes. Symptoms often begin in adolescence, sometimes with the onset of periods. Endometriosis is frequently not diagnosed until the 20s or 30s, but adolescent-onset disease is real and is not less serious. Persistent severe period pain in adolescents should be evaluated.

Yes. Endometriosis has a heritable component. Having a first-degree relative (mother, sister) with endometriosis increases your likelihood of the condition. Mention any family history to your clinician.

Related

Say it back

How would you explain this to someone you love?

Two or three sentences, just as you’d say it. Gale reflects back what you focused on — a mirror, not a quiz.

Talk to a clinician

A women's health clinician

Gale can help you find one in your state and request a visit.

Find care →

When to seek urgent or emergency care

  • —Sudden, severe pelvic pain that is distinctly different from your usual pain — especially with fever — may indicate a ruptured cyst or pelvic infection; seek urgent or emergency care
  • —Pelvic pain with dizziness, fainting, or shoulder-tip pain — may indicate internal bleeding; call 911 or go to an emergency department
  • —Sudden sharp pelvic pain that worsens rapidly, with or without vomiting — possible endometrioma rupture; requires emergency evaluation

If you have sudden, severe pelvic pain that is different from your usual pain — especially with fever, shoulder-tip pain, dizziness, or fainting — go to an emergency department or call 911. These may indicate a ruptured cyst or other urgent condition.

This article is general health information and is not a diagnosis. Only a licensed clinician — ideally a gynecologist with experience in endometriosis — can evaluate, diagnose, and guide treatment for your individual situation.

Did this answer your question?

References

  1. 1.American College of Obstetricians and Gynecologists (2010). Management of Endometriosis: ACOG Practice Bulletin, Number 114 (Reaffirmed 2022). Obstetrics & Gynecology. doi:10.1097/AOG.0b013e3181e8b073 ✓Clinical presentation, diagnostic approach (laparoscopy, ultrasound/MRI limitations), and management options for endometriosis including hormonal therapy, surgery, and fertility considerations
  2. 2.Lacy BE, Pimentel M, Brenner DM, Chey WD, Keefer LA, Long MD, Moshiree B (2021). ACG Clinical Guideline: Management of Irritable Bowel Syndrome. American Journal of Gastroenterology. doi:10.14309/ajg.0000000000001036 ✓IBS as a condition that shares gastrointestinal symptoms with endometriosis and can coexist with it, informing the differential diagnosis; cyclical pattern is the clinical clue distinguishing endometriosis-related bowel symptoms from IBS
  3. 3.American College of Obstetricians and Gynecologists (2020). Vaginitis in Nonpregnant Patients: ACOG Practice Bulletin, Number 215. Obstetrics & Gynecology. doi:10.1097/AOG.0000000000003604 ✓Pelvic inflammatory disease (PID) as an important differential in the evaluation of pelvic pain; STI screening in the workup of women with pelvic pain and discharge

3 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy

← Back to the health library