American Society for Reproductive Medicine revised classification of endometriosis.

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.)