Table 40-1. American Society for Reproductive Medicine revised classification of endometriosis.
Peritoneum Endometriosis < 1 cm 1-3 cm > 3 cm
 
Superficial
 1 2 4
 
Deep
 2 4 6
Ovary
R Superficial
 1 2 4
 
Deep
 4 16 20
 
L Superficial
 1 2 4
 
Deep
 4 16 20
  Posterior Cul-de-sac Obliteration Partial
4		   Complete
40
  Adhesions < 1/3
Enclosure		 1/3-2/3
Enclosure		 > 2/3
Enclosure
Ovary
R Filmy
 1 2 4
 
Dense
 4 8 16
 
L Filmy
 1 2 4
 
Dense
 4 8 16
Tube
R Filmy
 1 2 4
 
Dense
 41 81 16
 
L Filmy
 1 2 4
 
Dense
 41 81 16
1If the fimbriated end of the fallopian tube is completely enclosed, change the point assignment to 16. Staging: Stage I (minimal): 1-5; stage II (mild): 6-15; stage III (moderate): 16-40; stage IV (severe): > 40. (Reproduced with permission from Revised ASRM classification. Fertil Steri 1997; 67:819.)

American Society for Reproductive Medicine revised classification of endometriosis.