Understanding Endometriosis: A Comprehensive Overview

Endometriosis is a chronic inflammatory condition characterized by endometrial-like tissue growing outside the uterus. Unlike normal endometrial tissue, these lesions can appear anywhere in the body, though they commonly affect reproductive organs, bladder, and colon. This misplaced tissue responds to hormonal changes, thickening and bleeding with each menstrual cycle, but with no way to exit the body, it becomes trapped, potentially leading to cyst formation, irritation, and adhesions.

5/1/20252 min read

Endometriosis is a chronic inflammatory condition characterized by endometrial-like tissue growing outside the uterus. Unlike normal endometrial tissue, these lesions can appear anywhere in the body, though they commonly affect reproductive organs, bladder, and colon. This misplaced tissue responds to hormonal changes, thickening and bleeding with each menstrual cycle, but with no way to exit the body, it becomes trapped, potentially leading to cyst formation, irritation, and adhesions.

Beyond "Painful Periods"

Contrary to common misconceptions, endometriosis isn't merely painful menstruation—it's a systemic, inflammatory disease that can be debilitating. Though its exact causes remain unclear and debated, research indicates multiple contributing factors. While primarily affecting individuals assigned female at birth (approximately 190 million worldwide), it has been documented in fewer than 20 cases involving cisgender men.

Recognizing Symptoms

Symptoms can begin at any age and may include:

  • Severe pelvic pain (often cyclical)

  • Painful menstruation requiring medication or limiting daily activities

  • Lower back and abdominal discomfort

  • Pain during or after sexual intercourse

  • Discomfort during bowel movements or urination

  • Heavy menstrual bleeding

  • Potential fertility challenges

  • Fatigue, digestive issues (diarrhea, constipation, bloating)

  • Nerve and muscular pain extending to legs, back, and sometimes shoulders

Many individuals experience these symptoms differently, and some may become accustomed to severe pain, believing it normal. Notably, these symptoms overlap with adenomyosis, where endometriotic lesions grow within the uterine muscle wall.

Classification and Types

Endometriosis is classified into four stages according to the American Society for Reproductive Medicine (ASRM):

  • Stage I (minimal): Few small lesions with minimal scarring

  • Stage II (mild): More numerous and deeper implants with some scarring

  • Stage III (moderate): Multiple deep implants, possible ovarian cysts, thick adhesions

  • Stage IV (severe): Widespread deep tissue involvement, large ovarian cysts, extensive adhesions

Four main types exist:

  1. Superficial peritoneal endometriosis: Tissue attached to the peritoneum

  2. Endometriomas: Dark fluid-filled "chocolate cysts" commonly on ovaries

  3. Deep infiltrating endometriosis (DIE): Tissue invading organs within or outside the pelvis

  4. Abdominal wall endometriosis: Growth on the abdominal wall, often at surgical sites

Potential Complications

While typically confined to the pelvis, approximately 12% of cases occur elsewhere. Complications may include:

  • Fertility issues and ectopic pregnancy risk

  • Organ obstruction or damage

  • Bladder and bowel dysfunction

  • Adhesions and ovarian cysts

  • Surgical complications

  • Severe anemia

  • Development of other chronic conditions

Rare manifestations include diaphragmatic endometriosis (affecting breathing) and extremely rare cerebral endometriosis.

Diagnosis Challenges

Diagnosis typically takes 7-10 years due to:

  • Varied or absent symptoms in many patients

  • Lack of awareness among healthcare providers

  • Normalization of menstrual pain

  • Absence of simple diagnostic methods

Definitive diagnosis requires laparoscopic surgery, though doctors may first perform pelvic exams, ultrasounds, or MRIs to exclude other conditions.

Treatment Approaches

Pain Management

  • Over-the-counter medications like paracetamol and NSAIDs for temporary relief

Hormone Therapy

  • Combined contraceptives (taken continuously)

  • Progestogens (pills, injections, or IUDs)

  • Gonadotrophin-releasing hormone analogues (GnRHa) for moderate to severe cases

  • Menopausal hormone therapy with caution for those in menopause

Non-Hormone and Non-Drug Options

  • Certain antidepressants affecting pain response

  • Pelvic floor physiotherapy

  • Cognitive behavioral therapy

  • Dietary modifications

Surgical Interventions

  • Laparoscopic removal of endometrial tissue

  • Hysterectomy in extreme cases, sometimes with removal of ovaries and tubes

  • Combined approaches using both surgery and hormone therapy

Living with Endometriosis

Endometriosis cannot be cured but can be managed. The significant diagnostic delay impacts quality of life across social, personal, and professional domains, often contributing to mental health challenges. Early detection may reduce long-term impacts and improve management strategies.

If you experience these symptoms, consult a healthcare provider promptly for evaluation and potential treatment.