Where do heel spurs take place?
Chronic inflammation of the foot where soft tissue tendons attach to the heel are a cause of heel spurs, according to MedicineNet. The plantar fascia that stretches from the heel to toe has a poor blood supply when inflamed, leading to slow healing and formation of soft calcium deposits, as Runner’s World describes. Heel spurs cause foot pain in about 5 percent of people, and OrthoInfo indicates that one in 10 people have heel spurs.
Sources: webmd.com, medicinenet.com, runnersworld.com, orthoinfo.org