Plantar fasciitis is a common cause of heel pain. It is a condition that occurs when the plantar fascia becomes inflamed and irritated near where it attaches to the heel bone.
The plantar fascia is a thick fibrous band of connective tissue that runs along the sole of the foot from the heel bone (calcaneus) along the inside edge of the foot to the base of the toes, creating the foot’s arch. Its function is to help lift the arch of the foot (which enables us to push off from the ground), to keep the bones and joints in position, and to act as a shock absorber for the whole leg.
Plantar fasciitis is inflammation of this band of connective tissue (plantar fascia), either through bruising, overstretching, overuse or a medical condition. In many cases, Plantar fasciitis is associated with a heel spur. The plantar fascia first becomes irritated and then inflamed, resulting in heel pain. It can occur suddenly but more often it develops gradually over a period of time.