Plantar Fasciitis is caused by repetitive strain and is the most common cause of localized heel pain. It is an inflammation of the plantar fascia, a ligament structure that supports the longitudinal arch of the foot. It is a tough, fibrous band of connective tissue that runs from the heel bone to the ball of the foot. Common symptoms include a dull, intermittent pain in the heel or arch, progressing to a sharp, persistent pain. It can also be a sharp, piercing pain and/or inflammation through the heel and foot that most often occurs first thing in the morning and gradually disappears with walking.