Endometriosis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aravind Kuchkuntla, M.B.B.S[2]
Overview
Classification
Endometriosis is classified based on revised American Society for Reproductive Medicine scoring system:
- Stage I: Minimal disease, lesions are isolated and limited to the pelvis. No adhesions are present.
- Stage II: Mild endometriosis lesions are superficial with size less than 5 cm in aggregate. Lesions are scattered on the peritoneum and ovaries. No significant adhesions are present.
- Stage III: Moderate disease characterized by the presence of multiple implants, and include both superficial and deeply invasive lesions. Peritubal and periovarian adhesions may be evident.
- Stage IV: Severe disease is characterized by multiple superficial and deep implants, with large ovarian endometriomas. Filmy and dense adhesions are usually present.