Baden-Walker system		Pelvic organ prolapse quantification system
Grade	Description	Stage	Description
0	Normal position for each respective site, no prolapse	0	No prolapse
1	Descent halfway to the hymen	I	Greater than 1 cm above the hymen
2	Descent to the hymen	II	1 cm or less proximal or distal to the plane of the hymen
3	Descent halfway past the hymen	III	Greater than 1 cm below the plane of the hymen, but protruding no farther than 2 cm less than the total vaginal length
4	Maximal possible descent for each site	IV	Eversion of the lower genital tract is complete