A heel spur is a calcium deposit causing a bony protrusion on the underside of the heel bone. On an X-ray, a heel spur can extend forward by as much as a half-inch. Without visible X-ray evidence, the condition is sometimes known as "heel spur syndrome".
Although heel spurs are often painless, they can cause heel pain. They are frequently associated with plantar fascitis, a painful inflammation of the fibrous band of connective tissue (plantar fascia) that runs along the bottom of the foot and connects the heel bone to the ball of the foot.
Treatments for heel spurs and associated conditions include exercise, custome-made otthotics, anti-inflammitory medications, and cortisone injections. If conservative treatments fail, surgery may be necessary.
Heel spurs occur when calcium deposits build up on the underside of the heel bone, a process that usually occurs over a period of many months. Heel spurs are often caused by strains on foot muscles and ligaments, stretching of the plantar fascia, and repeated tearing of the membrane that covers the heel bone. Heel spurs are especially common among athelets whose activities include large amounts of running and jumping.
Heel spurs often cause no symptoms. But heel spurs can be associated with intermittent or chronic pain, especially while walking, jogging, or running. In general, the cause of the pain is not the heel spur itself, but the soft tissue injury associated with it.
Many people describe the pain of heel spurs and the plantar fascitis as a knife or pin sticking into the bottom of their feet when they first stand up in the morning, a pain that later turns into a dull ache. They often complain that the sharp pain returns after they stand up from sitting for a prolonged period of time.