What are the classical symptoms of endometriosis and adenomyosis?

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Last updated: April 16, 2025View editorial policy

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From the Guidelines

The classical symptoms of endometriosis and adenomyosis include chronic pelvic pain, painful menstruation (dysmenorrhea), painful intercourse (dyspareunia), and abnormal uterine bleeding, as supported by the most recent evidence from 2024 1.

Symptoms of Endometriosis and Adenomyosis

The symptoms of these conditions can be summarized as follows:

  • Chronic pelvic pain
  • Painful menstruation (dysmenorrhea)
  • Painful intercourse (dyspareunia)
  • Abnormal uterine bleeding
  • Heavy menstrual bleeding and prolonged periods in adenomyosis
  • Tender, enlarged uterus in adenomyosis
  • Fatigue and gastrointestinal symptoms like bloating, nausea, constipation, or diarrhea during menstruation

Characteristics of Symptoms

The symptoms of endometriosis and adenomyosis can vary in severity and may not necessarily correlate with the extent of the disease. Even minimal endometriosis can cause severe pain, while extensive disease may be asymptomatic. The pain associated with endometriosis can be sharp, cramping, or a constant dull ache in the lower abdomen, lower back, and pelvic regions.

Diagnosis and Classification

The diagnosis of endometriosis is challenging due to variable presenting symptoms and nonspecific physical examination findings. Imaging studies, such as expanded protocol transvaginal ultrasound (TVUS) and MRI, can help diagnose endometriosis and inform treatment planning. Classification systems for endometriosis have been developed, but they have limitations and do not always predict symptoms, response to treatment, or quality of life outcomes.

Recent Evidence

The most recent evidence from 2024 1 supports the use of imaging studies, such as TVUS and MRI, to diagnose and classify endometriosis. The American College of Radiology Appropriateness Criteria recommend the use of these imaging studies to inform treatment planning and improve patient outcomes.

From the Research

Classical Symptoms of Endometriosis

  • Chronic pelvic pain 2, 3, 4
  • Infertility 2, 3, 4
  • Dyspareunia (painful intercourse) 4
  • Dysmenorrhoea (painful menstruation) 4
  • Pelvic tenderness 4
  • Heavy menstrual bleeding is not typically a symptom of endometriosis, but rather of adenomyosis 5

Classical Symptoms of Adenomyosis

  • Heavy menstrual bleeding 5
  • Pelvic pain 5
  • Infertility 5
  • One in three patients with adenomyosis may be asymptomatic 5

Overlapping Symptoms

  • Both endometriosis and adenomyosis can cause pelvic pain and infertility 2, 5, 3, 4
  • The two conditions often occur simultaneously 5

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Gonadotropin-releasing hormone analogues for endometriosis.

The Cochrane database of systematic reviews, 2023

Research

Adenomyosis: Diagnosis and Management.

American family physician, 2022

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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