A car accident happens onscreen and the passengers leave the car covered in blood.
A man seemingly self-harms by putting his hand in a flame as a way to punish himself for his sins.
Many fistfights throughout with not much blood, with most of the violence being towards the end of the movie, including a person getting shot in the neck and another in the hand (blood shown), as well as a bloody car crash (overall, not as violent as many of Scorsese's other movies like Goodfellas or Casino).
Hand to hand fights throughout (sometimes rather comedic) with no serious injuries resulting.