The Dodgers have already used 35 different pitchers this season, which means it's basically guaranteed that they break through the 40-pitcher ceiling they established last year. Injuries have been worse than ever for LA — Blake Snell is out, Roki Sasaki is out, Blake Treinen is out, Evan Phillips is out and had Tommy John — and there are seemingly no real solutions in sight, despite a reported internal audit.
There are probably a few causes for this spike, but the biggest one is obvious: pitchers are throwing harder, which is tougher on the body.