Flash backs to annes life in the orphanage show her being beaten. Brief.
There is a fight seen between two teen boys and one of them gets their ear burned badly.
Season 3: A boy slips on a rock and cuts his leg open. He screams loudly and we see the large wound. A woman stitches the wound which is shown in a few shots. It looks quite painful so it can be hard to watch if you're squeamish.
A boy trips over a stone and cuts his leg and has to get stitches. Blood is shown and there are various close ups of the stitches. 2 boys have a fight and one of them has their head pushed into a stove. You see him screaming and a brief showing of a burnt ear.
Conflict and some physical exchanges shown mostly in the context of flashbacks as Anne is haunted by her past. Adults verbally abuse her, calling her names and suggesting she's worthless. In some cases they also hit her, and it's implied that she suffers hunger in their care. In one brief scene, a man attempts to abduct her and then turns his attention on two young boys.
In season 2, a boy accidentally knocks another boy off a ladder and makes him break his wrist. While it was clear the boy was trying to antagonize, he obviously hadn't meant for it to go that far.