Contusions

Contusion is a technical term for a bruise: depending on the size of the object, location, and force of the collision, a contusion can resolve in a few days or persist for months. For example, with bone, a contusion takes weeks to months to fully heal whereas with muscle a comparable size bruise will take a few days to a week or two to heal.  

Contusions are a form of crush injury, which damages the tissue and causes blood to pool in the area. Laser therapy brings blood flow into the area, stimulates new blood vessel formation, and enhances tissue regeneration to lead to a fast and complete recovery.