The plantar fascia is a strong, fibrous material located on the bottom of the foot. It runs from the ball of the foot to the heel and is composed of three main sections. Pain from plantar fasciitis (inflammation of the plantar fascia) can occur anywhere in the plantar fascia but most commonly occurs on the inside corner of the heel. The most severe pain usually occurs when a person takes their first steps in the morning. The plantar fascia will shrink or contract when you are off your feet for 6-8 hours at night. With the first step in the morning, the fibrous band goes from a state of no tension to considerable tension, often resulting in severe pain.
As you walk, the fascia stretches out, and the pain will often diminish or go away completely. As the condition persists, it takes longer and longer for the pain to ease up. Eventually, it never does. The primary cause of plantar fasciitis is excessive pronation.
The long-term solution to this injury – 95% of the time – is a functional, custom-made orthotic. By treating the true cause of the problem, the mechanics of the foot, surgery is rarely required.