Often lateral ankle pain is a result of peroneal tendonitis. There are 2 tendons at the lateral ankle and it is very common for these tendons to be chronically torn or elongated as a result of overuse. The same treatment plan for peroneal tendon tendonitis exists for posterior tibial tendonitis, including orthotics, ankle braces, CAM boots, and physical therapy to strengthen the tendon. However, if an acute tear in the peroneal tendon is suspected usually due to acute trauma, an MRI will often be ordered, and then these tendon or tendon would be surgically repaired. However, just as in posterior tibial tendonitis, the majority of cases are non-surgical and respond very well to treatment.