There's non-stop violence in almost every episode. Some characters even stab their enemies. Also, they punch each other, with bloody results. During the prison scenes, the directors are mean, giving harmful punishments to the prisoners. Guns are always being used by the characters.
The violence in the show is realistic as the show progresses. Younger kids may find this disturbing.
There is an excessive amount of blood, so surprising that it feels unrealistic and more exaggerated than shocking.