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Stages of Endometriosis - Topic Overview

Staging is a way of describing how mild or severe a condition is. The stage of the endometriosis is determined by looking at the uterus, fallopian tubes, and ovaries and inside the abdomen and lower pelvic area. Usually, this is done with a viewing instrument inserted through a small incision in the belly (laparoscopy). But endometriosis is sometimes first found during surgery for an unrelated condition.

Endometriosis is classified in four stages:

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Endometriosis Patient Education Center

Visit WebMD's Women's Health Health Center • Newly Diagnosed? Find help here. • Healthwise from WebMD: Endometriosis Overview • Your Guide to Endometriosis: Get Information from the Cleveland Clinic • WebMD Member Story: Searching for a Solution • Reach Out: Endometriosis Support Group Message Board • Reach Out: OB-Gyn Issues Message Board with Jane Harrison-Hohner, RN, RNP

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  • Stage I: minimal
  • Stage II: mild
  • Stage III: moderate
  • Stage IV: severe

The stage of the endometriosis is based on the:

  • Location of endometriosis growths (implants).
  • Number of places the implants are found.
  • Depth the implants penetrate into normal tissue.
  • Severity of the scar tissue (adhesions) around the implants.
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WebMD Medical Reference from Healthwise

Last Updated: July 07, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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