Heel Pain (Plantar Fasciitis)
Heel pain is most often caused by plantar fasciitis, a condition that is sometimes also called heel spur syndrome when a spur is present. Heel pain may also be due to other causes, such as a stress fracture, tendonitis, arthritis, nerve irritation, or, rarely, a cyst.
Because there are several potential causes, it is important to have heel pain properly diagnosed. A foot and ankle surgeon is able to distinguish between all the possibilities and determine the underlying source of your heel pain.
Causes of Heel Pain
Plantar Fasciitis / Heel Spur
A sharp stabbing pain, like a nail going into the bottom of the heel when first stepping on the foot after getting out of bed or after sitting for period of time, is the most common description for plantar fasciitis or heel spur syndrome. Typically the pain eases off as the day goes on but it may not go away completely. A thick ligament that attaches to the bottom of the heel and runs the length of the foot to the toes can become inflamed and swollen at the attachment site. This tends to be an overuse type of injury where poor foot structure is involved; also, wearing of shoe gear that lacks adequate support (ie: worn out shoes, boots and flip-flops) and prolonged standing or walking are often implicated.
A throbbing pain that gets worse as the day goes on and can be worse at night when laying in bed is most often associated with an irritated or entrapped nerve on the inside of the ankle or heel. This is similar to carpel tunnel syndrome in the wrist and hand. Approximately 7 / 10 patients with heel pain have a component of nerve entrapment as the cause of their heel pain. This is also one of the most common causes of chronic heel pain because it is often missed as a diagnosis. When nerve entrapment is considered to be a cause, painless neurosensory testing is performed with the Pressure Specified Sensory Device™ (PSSD) at The Foot & Ankle Center, PC to determine the extent of compression.
A less common cause of heel pain but a stress fracture is often considered in athletes, such as long distance runners, who have heel pain.
Posterior Heel Pain (Retrocalcaneal)
This is pain in the back of the heel that flares up when first starting an activity. It is often associated with a large bump that can be irritated by shoes. The Achilles tendon attaches to the back of the heel and, like on the bottom, this attachment site can often become inflamed; a spur may or may not be present. Another painful area is a sac of fluid (bursa) that sits between the tendon and bone to act as a cushion for the tendon. This bursa can become inflamed often leading to significant pain called retrocalcaneal bursitis.