MLB injury list has Derek Jeter on there with a left foot bone bruise. Bone bruises happens when there is a trauma to the bone, think of it as a punch delivered to the bone causing bone swelling. The bone as an outer covering called the periosteum that carries blood to the bone and with a bone bruise, more blood is sent to the bone with healing factors to help heal this injury. Can take up to 6-8 weeks for full resolution in most cases.
MRI's are useful as well as ultrasound can help detect this injury.
Dr. Kevin Lam
Director of Family Foot and Leg Center