Endometriosis symptoms: recognising the signs and when to seek care
Key Takeaways
Endometriosis symptoms vary widely, are often cycle-dependent, and may combine progressive dysmenorrhoea, chronic pelvic pain, deep dyspareunia, dyschezia, dysuria and infertility. The disease can also be entirely asymptomatic. In adolescents, disabling dysmenorrhoea or school absenteeism should raise suspicion — early lesions are often atypical. The global diagnostic delay remains long (sometimes more than 12 years): insisting on a systematic evaluation when symptoms persist is legitimate.
A highly variable presentation
Endometriosis presents very differently from one patient to another. Some women experience disabling pain with limited imaging findings, while others are diagnosed incidentally with extensive disease during an infertility workup or unrelated surgery. Symptom severity does not always reflect disease severity, and the converse is also true.
Recognising the typical symptom constellation is essential to shorten the diagnostic delay — one of the major challenges of this condition. This article describes the clinical manifestations and warning signs. For the diagnostic tools, see diagnosing endometriosis; for overall management, see the complete endometriosis guide.
Cardinal symptoms
Progressive dysmenorrhoea
Painful periods that worsen over the years are the most suggestive sign. Dysmenorrhoea that resists usual analgesics, intensifies with each cycle, or appears after a period of well-tolerated menses should raise suspicion of endometriosis.
This differs from primary dysmenorrhoea — common in adolescents, generally stable over time and responsive to NSAIDs — which has no underlying organic cause.
Chronic pelvic pain
Pelvic pain outside menstruation, whether constant or intermittent, is part of the picture. It may be lateralised (in case of an endometrioma) or diffuse (in deep disease or after years of central sensitisation).
Deep dyspareunia
Pain during sexual intercourse, felt deep inside (rather than at the vaginal entrance), suggests involvement of the utero-sacral ligaments or recto-vaginal septum. It is one of the most specific symptoms of deep endometriosis.
Dyschezia
Pain on defecation, particularly during or before menstruation, suggests involvement of the rectum or recto-vaginal septum. It may be accompanied by cyclic rectal bleeding in more severe forms.
Dysuria
Pain on urination, especially perimenstrual, suggests bladder involvement. Less commonly, cyclic haematuria can occur.
Infertility
Across series, 30 to 50 % of infertile women have endometriosis, and 30 to 50 % of women with endometriosis experience infertility. Endometriosis may be revealed by an infertility workup, sometimes with no other suggestive symptom.
Chronic fatigue
Unexplained prolonged fatigue, cyclic digestive complaints (bloating, alternating normal and disturbed transit), and mood changes secondary to chronic pain are part of the broader picture.
Atypical presentations to keep in mind
- Extra-pelvic endometriosis: cyclic chest pain (catamenial pneumothorax), scapular pain (diaphragmatic involvement), cyclic painful umbilical nodule.
- Deep endometriosis without dysmenorrhoea: possible, particularly with nerve infiltration.
- Asymptomatic endometriosis: incidental finding on a routine scan or surgery for another indication.
- Polysymptomatic forms: a constellation of digestive, urinary, painful and fatigue complaints sometimes mislabelled as “functional” or “psychosomatic.”
Clinical examination
The gynaecological examination may reveal:
- tenderness on palpation of the utero-sacral ligaments at vaginal examination;
- nodules in the Pouch of Douglas or the recto-vaginal septum;
- fixed retroverted uterus;
- adnexal mass suggestive of an endometrioma.
A normal clinical examination does not rule out endometriosis — particularly for superficial forms or extra-pelvic lesions.
The adolescent: a particular case
Disabling dysmenorrhoea in an adolescent, especially with school absenteeism, repeated analgesic use, or emergency-department visits, should raise the suspicion of early-onset endometriosis.
Lesions in adolescents are often atypical: red, vesicular or clear rather than the classical pigmented lesions. Diagnosis is more difficult because:
- primary dysmenorrhoea is very common at this age;
- reluctance to discuss pain or sexuality delays consultation;
- gynaecological examinations are more delicate;
- medical culture still underestimates early-onset endometriosis.
ESHRE 2022 nonetheless recommends first-line hormonal treatment in adolescents with severe dysmenorrhoea or endometriosis-associated pain, without waiting for surgical confirmation. Surgery is reserved for refractory cases in expert centres.
The diagnostic delay: a global problem
According to the recent systematic review by De Corte et al., BJOG 2025, the average delay between first symptoms and diagnosis ranges from a few months to more than 12 years across countries. Several factors contribute:
- normalisation of menstrual pain (“it’s normal to hurt during periods”);
- medical wandering between general practitioner, gastroenterologist, urologist, physiotherapist;
- non-specialist imaging sometimes read as normal;
- lack of local expertise in IDEA-protocol ultrasound;
- outdated doctrine that placed laparoscopy as a diagnostic prerequisite.
The ESHRE 2022 guideline (Becker et al., Human Reproduction Open) aims precisely to shorten this delay by placing imaging in first line and allowing early empirical treatment.
Warning signs that warrant consultation
Consult your doctor promptly if you have:
- dysmenorrhoea worsening over cycles or resistant to usual analgesics;
- chronic pelvic pain outside menstruation;
- persistent deep dyspareunia;
- cyclic dyschezia or dysuria;
- atypical bleeding (cyclic rectal bleeding, cyclic haematuria);
- infertility after 12 months of trying (or 6 months after age 35);
- in your adolescent daughter, disabling periods or school absenteeism related to pain;
- cyclic chest pain or a painful umbilical nodule at menstruation.
Prepare the consultation with a pain diary (visual scale, cycle days, impact on activities), the list of your medications and family history.
Once endometriosis is diagnosed
Once endometriosis is diagnosed, management is individualised by predominant symptoms, pregnancy plans, age and disease extent. Three axes coexist:
- Detailed imaging diagnosis: see diagnosing endometriosis.
- Stepped medical treatment: see treating endometriosis pain.
- Fertility assessment when relevant: see endometriosis and infertility.
In practice
- Progressive dysmenorrhoea, deep dyspareunia, cyclic dyschezia or dysuria, or infertility should raise suspicion of endometriosis.
- Endometriosis may be asymptomatic or present atypically.
- In adolescents, disabling dysmenorrhoea is enough to raise the diagnosis and start first-line hormonal therapy.
- The diagnostic delay remains long globally — insist on a systematic evaluation when symptoms persist.
- A normal clinical examination does not rule out the disease.
FAQ
Are all painful periods suggestive of endometriosis?
No. Primary dysmenorrhoea — common in adolescents, stable over time and well controlled by NSAIDs — is not synonymous with endometriosis. The warning sign is dysmenorrhoea that worsens over the years, resists analgesics, or is accompanied by other features (dyspareunia, dyschezia, dysuria, infertility).
Can you have endometriosis without pain?
Yes. Some patients are diagnosed during an infertility workup, on imaging for another reason, or at surgery for another indication. Symptom severity does not always reflect disease extent.
Is my pain “in my head”?
No. Endometriosis pain is organic, linked to a chronically inflamed tissue producing its own pain mediators and sensitising the central nervous system over time. A psychological component to chronic pain exists, but it comes on top — not instead.
My 16-year-old daughter has very painful periods. When should we consult?
If the pain keeps her out of school, if she regularly takes painkillers, if pain lasts several days per cycle, or if she has had emergency-department visits for menstrual pain, consult without delay. ESHRE 2022 recommends first-line hormonal treatment in this context without necessarily waiting for surgical confirmation.
Which clinician should I see first?
A gynaecologist trained in endometriosis is ideal. Otherwise, your primary-care doctor can start the workup (transvaginal ultrasound under the IDEA protocol) and organise referral. Avoid fragmented care pathways (gastroenterologist + urologist + psychiatrist in parallel without coordination), which often delay diagnosis.
What should I bring to the consultation?
Bring your pelvic ultrasound and MRI reports, hormonal tests (AMH, FSH, oestradiol, prolactin), any operative reports, current medications, a pain diary over several cycles, and your partner’s semen analysis if infertility is part of the picture.
Sources
- Becker CM, Bokor A, Heikinheimo O, et al. ESHRE guideline: endometriosis. Human Reproduction Open 2022;2022(2):hoac009.
- WHO. Endometriosis Fact Sheet, March 2023.
- De Corte P, Klepsch S, Christ B, et al. Diagnostic delay in endometriosis: a contemporary systematic review. BJOG 2025.
- Rahmioglu N, Mortlock S, Ghiasi M, et al. The genetic basis of endometriosis and comorbidity with other pain and inflammatory conditions. Nat Genet 2023;55:423–436.
The content has been created by Dr. Senai Aksoy and medically approved.