rAFS Endometriosis Score Calculator

rAFS Endometriosis Score Calculator

Revised AFS / ASRM 1996

rAFS endometriosis score calculator

Calculate the endometriosis lesion subtotal and full rAFS score from lesion size, depth, cul-de-sac obliteration, and adnexal adhesions.

Total rAFS score 0
Endometriosis lesion score 0

Stage

Not staged

A score of 0 does not assign an rAFS stage.

Fertility meaning

rAFS stage describes the visible extent of disease at surgery. It should not be used by itself to predict fertility.

Lesions

Endometriosis sites

Peritoneum
Right ovary
Left ovary

Obliteration

Posterior cul-de-sac

Cul-de-sac status

Adhesions

Ovaries and fallopian tubes

Right ovarian adhesions
Left ovarian adhesions
Right tubal adhesions
Left tubal adhesions

Scoring notes

The calculator uses the highest score in each site category rather than adding multiple lesion depths in the same site. The uterus surface is counted as peritoneum. Bowel, urinary tract, vaginal, cervical, skin, and other disease should be documented separately because it is not directly scored in rAFS.

This tool is intended for score calculation and documentation support only; final staging should be verified against operative findings and local clinical practice.

Fertility context is intentionally cautious: rAFS stage is a surgical extent score, while fertility counseling usually also needs age, ovarian reserve, tubal function, partner factors, prior pregnancy, and tools such as the Endometriosis Fertility Index.

Reference: Revised ASRM Classification of Endometriosis: 1996.