The key difference between a heel spur and plantar fasciitis (when they develop independently) is that heel spurs frequently do not produce any discomfort. Plantar fasciitis, on the other hand, is characterised by inflammation of the plantar fascia tissues as well as discomfort.
Tears form in the plantar fascia as a result of prolonged stress or strain, causing inflammation. Plantar fasciitis is best treated with surgery, though steroid injections and shockwave therapy are other options. A TenexTM treatment (ultrasound imaging) that eliminates the scar tissue in the plantar fascia without surgery may also be performed.