Swelling in your foot or ankle is never normal, especially when it comes to the Achilles tendon. The Achilles tendon is one of the strongest tendons in the body. It is responsible for lifting the heel (called plantarflexion) with every step you take both running and walking.

Swelling of the Achilles tendon can be an inflammation of the tendon itself, known as Achilles tendinitis, or a partial tear of the tendon. The extent of the injury to the tendon often requires an MRI to diagnose. Don't wait!