The foot only contains one naturally occurring bursal sac between the Achilles tendon and the heel bone, which protects the Achilles from the pressure against the heel bone during ambulation. However, shoes may put pressure on this bursa. The bursa might also incur trauma from walking on hard ground. And, though they are not naturally occurring, bursa sacs can also form, and become inflamed, in other parts of the foot, including the bottom of the heel, and the metatarsal plate, the outside of the foot below the fifth toe, and so on.
Bursitis may be the result of a direct injury to the heel, such as during a car accident, sport-related accident, or fall that causes a forceful impact or abnormal twisting of the foot. It can also occur due to repetitive use, misuse, or overuse, such as seen in athletic over-training. Excessive pressure over the subcutaneous calcaneal bursa, such from wearing shoes that are tight or fit poorly, can also be a causative factor. Septic bursitis occurs secondary to an infection. The infection may occasionally be systemic, but is most often a localized infection from a subcutaneous heel wound that leaks into the underlying bursa. Other risk factors include any of the following, existing Achilles tendinitis, existing Haglund's deformity, the natural degenerative processes of aging, improper stretching prior to exercise, anatomical differences in the lower extremities that impacts gait, having deformed joints.
Medical experts strongly recommend that you consult a doctor if you have any of the symptoms below. Disabling joint pain that prevents you from doing your daily activities. Pain that lasts for more than two weeks. Excessive swelling, redness, bruising or a rash around the painful joint. Sharp or shooting pain, especially when you exercise or do something more strenuous. A fever. Any of the above could be a sign of infection, a condition such as arthritis or a more serious injury such as a tendon tear that may require medical attention.
Your doctor will check for bursitis by asking questions about your past health and recent activities and by examining the area. If your symptoms are severe or get worse even after treatment, you may need other tests. Your doctor may drain fluid from the bursa through a needle (aspiration) and test it for infection. Or you may need X-rays, an MRI, or an ultrasound.
Non Surgical Treatment
Long Term Treatment must be directed towards eliminating the abnormal tilting of the heel, regardless of its cause. If this is delayed, the usual results are the pain and swelling becomes worse, chronic, and debilitating. Eventually, painful calcifications and bone spur formations may occur on the back of the heel, along with tears in the Achilles Tendon. These are serious problems that may require surgical intervention. In order to eliminate abnormal heel tilt, the foot must be re-balanced. Controlling and reducing the biomechanical foot defects that are causing the heel to tilt best accomplish this. The "Gold Standard" of medical care (that treatment most used by doctors and therapists) to help eliminate pain, inflammation, and swelling at the back of the heel is orthotics.
Surgery is rarely done strictly for treatment of a bursitis. If any underlying cause is the reason, this may be addressed surgically. During surgery for other conditions, a bursa may be seen and removed surgically.
Maintain proper form when exercising, good flexibility, and strength around the ankle to help prevent this condition from arising. Proper stretching of the achilles tendon helps prevent injury.