Definition/Description If the bottom of your foot hurts when you walk, or kind of heel pain, you may have Plantar fasciitis. Plantar fasciitis may be referred to as plantar fasciosis, plantar heel pain, plantar fascial fibramatosis, among others. Because many cases diagnosed as “plantar fasciitis” are not inflammatory conditions, this condition may be best referred to as "plantar fasciosis." This is confirmed through histological analysis which demonstrates plantar fascia fibrosis, collagen cell death, vascular hyperplasia, random and disorganized collagen, and avascular zones. There are many different sources of pain in the plantar heel beside the plantar fasci...