Learn how plantar fasciitis develops
Plantar fasciitis is an inflammation of the plantar fascia—the fibrous band that connects the heel bone to the base of the toes. The condition generally starts like a stone bruise on the heel and the pain then spreads along the bottom of the foot.
When the plantar fascia is overstretched, minute tears develop, usually in the area where the band inserts into the heel bone, accompanied by inflammation and tissue degeneration. Heel spurs, small bony protrusions on the bone of the heel caused by fascia inflammation, can also appear.