Seven or more of the nuns are pregnant and Mother is infected with syphilis.
Attempted rape, Mathilde is pinned down by a male soldier who gropes her breasts over her clothes while she begs him to stop. Throughout this scene he makes sexual and lewd jokes. No nudity.
Several semi-graphic depictions of childbirth. Mathilde performs a Caesarean section. We see the cut being made and at intermittent intervals the baby being pulled out. In this and other instances, characters who participate in the delivery of the babies are seen with copious amounts of blood on their hands after the deliveries.
A few semi-graphic depictions of surgeries on soldiers hurt in the war (e.g. stitching a soldier's wound)