PLANTAR FASCIITIS
A ligament called the plantar fascia runs from the heel to the ball of the foot. Plantar fasciitis is an inflammation of this ligament. If the plantar fascia is too tight, your foot may not flatten enough. This will cause inflammation and pain. If the foot flattens too much, the fascia can overstretch, become inflamed and hurt. The bottom or inside of your heel may hurt when you stand. The pain usually lessens after you walk a few steps, but may return with prolonged movement.