They start out blue or purple and then fade to green or brown or yellow. It can take up to two weeks for a bruise to completely disappear. However, if a bruise continues to get bigger or darker, treatment may be necessary. A baby with hemophilia can bruise simply from being held and handled . As babies learn to crawl, walk, stand, and climb, they may get bruises on their arms, legs, elbows, knees, face, or buttocks.
Toddlers get many bruises on their arms and legs.
These are usually harmless. Be sure to allow your son the freedom to explore and grow. Bruises normally shrink with time . It can take up to two weeks for a bruise to completely disappear. To help minimize the amount of bruising, put knee pads on your son's pants, and padding on edges of coffee tables and other hard areas around the house.