causes of pain in foot/ankle running
Foot Injuries. Plantar fasciitis is a syndrome of heel pain due to inflammation of the thick ligament of the base of the foot. A tight, inflamed plantar fascia can cause pain when walking or running, and lead to the formation of a heel spur. Pronation is a normal movement of the foot through the gait cycle.
A runner may sprain an ankle by landing wrong (for example, rolling the ankle) or during a fall. The pain of a sprain is immediate and is typically accompanied by ankle swelling. The person may not be able to put weight on the affected foot. See All About Ankle Sprains and Strains