What Is Endometriosis?
Endometriosis is a condition in which tissue similar to the endometrium (uterine lining) grows outside the uterus — on the ovaries, Fallopian tubes, peritoneum, bladder, bowel, and in some cases distant sites. These deposits respond to the monthly hormonal cycle in the same way the uterine lining does: they thicken, break down, and bleed. But unlike the uterine lining, the blood has nowhere to go. This triggers inflammation, adhesion formation, and progressive scarring.
Endometriosis is oestrogen-dependent, which is why it typically presents in reproductive-age women and improves after menopause. It is not caused by poor hygiene, stress, or lifestyle — and it is not simply "bad periods".
Symptoms of Endometriosis
The symptom pattern varies considerably, but typical presentations include:
- Dysmenorrhoea: Period pain that is severe enough to limit daily activities, does not respond adequately to standard painkillers (ibuprofen, paracetamol), and typically worsens over time. This is the most common symptom.
- Chronic pelvic pain: Pain throughout the cycle, not just during a period. Often described as a deep ache in the pelvis, lower back, or thighs.
- Deep dyspareunia: Pain deep inside the pelvis during or after sexual intercourse — particularly in certain positions.
- Cyclical bowel symptoms: Bloating, diarrhoea, constipation, or pain on defecation that worsens around the time of a period. Frequently misdiagnosed as irritable bowel syndrome.
- Cyclical urinary symptoms: Urgency, frequency, or pain on urination around the period, suggesting bladder or ureteric involvement.
- Heavy menstrual bleeding: Often co-exists with adenomyosis, which is closely related to endometriosis.
- Subfertility: Endometriosis is found in up to 30–50% of women investigated for subfertility.
Why Does Endometriosis Take So Long to Diagnose?
Several factors compound diagnostic delay:
Ultrasound has major limitations here. Standard pelvic ultrasound will identify ovarian endometriomas (chocolate cysts) and sometimes severe deep infiltrating disease — but it misses the vast majority of peritoneal endometriosis. A normal or "unremarkable" pelvic ultrasound does not exclude the condition. This is one of the most common sources of diagnostic error.
The only definitive way to diagnose and simultaneously treat endometriosis is laparoscopy — a surgical procedure performed under general anaesthetic. Because laparoscopy is invasive, it is only offered when there is sufficient clinical suspicion. This is why the clinical history and examination are so important: they build the case for referral to a specialist.
How a Private Gynaecology Appointment Can Help
At Lambert Medical Practice, a private gynaecology appointment includes a thorough history of your symptoms, a careful assessment of the likely diagnosis, relevant blood tests and examination, and where appropriate, a referral letter to an endometriosis specialist. For many patients, having a clinician take their symptoms seriously — and document them carefully — is the first step toward getting the appropriate investigations. We can also initiate medical management (hormonal suppression) while a definitive diagnosis is being pursued.