The picture above shows normal organs. Your healthcare provider can mark where you have growths of endometriosis tissue. These are called implants.
Staging depends on certain factors. These include:
Number, size, and site of implants
Presence and extent of adhesions
Involvement of other pelvic organs
The stage may not match the pain you feel. Even early stages can cause a large amount of pain. Some people with later-stage disease may have few symptoms.
The 4 stages are listed below and are based on a complex scoring system:
I - Minimal
II - Mild
III - Moderate
IV - Severe