Need more info
If your ? Is about an ankle/elbow?Sprain
, I am reluctant to use the lable in a 2yo.
It can happen, but 2yo have strong ligaments that can pull off chips of bone before they get sprains.The soft growth areas of bone are vulnerable & proper assessment is important. A cold compress over the area initially helps cut swelling/elevate/compress with a stretchy bandage & have it looked at.Xrays may be rqd.