Baseball and Softball can be great for kids, helping develop hand-eye coordination and teamwork.
But even though it's considered one of the safest sports, doctors say it's important to be careful.
The American Academy of Pediatrics has rules in place that limit pitch counts and the type of pitches that can be thrown by younger players.
And youth leagues usually have softer baseballs, breakaway bases, and rubber spikes instead of metal.
And of course helmets to protect against concussions.