Osteomyelitis (an infection of the bone) can be caused by a variety of microbial agents (bacteria, fungus), the most common of which is staphylococcus aureus. This serious infection can occur from a number of sources: • It may enter bone through an injury, such as an open fracture with the bone ends

Bone tumors are caused by an abnormal growth of cells. They may be benign (noncancerous) or malignant (cancerous). Although rare, bone tumors can occur in the foot and ankle. They can be primary (originating in the bone), or secondary (originating in another part of the body). Symptoms of a bone tumor

Brachymetatarsia is a condition in which one of the bones in the front of the foot is significantly shorter than the others. Although it may affect any of the five metatarsals, it most commonly affects the fourth metatarsal. Looking at the foot, it might appear that the fourth toe itself is shorter than

Even though bunions are a common foot deformity, there are misconceptions about them. Many people may unnecessarily suffer the pain of bunions for years before seeking treatment.   What is a Bunion? A bunion (also referred to as hallux valgus or hallux abducto valgus) is often described as a bump

Bursitis is an inflammation of a small fluid-filled sac, called a bursa, located near a joint, bone or tendon.  The bursa, which protects the area from friction, can become inflamed from repetitive motion or irritation from shoes.  In the foot, the heel and the toes are most often affected. Symptoms

What Is Calcaneal Apophysitis? Calcaneal apophysitis is a painful inflammation of the heel’s growth plate. It typically affects children between the ages of 8 and 14 years old, because the heel bone (calcaneus) is not fully developed until at least age 14. Until then, new bone is forming at the growth

Calf pain can result from many different causes. Sometimes something as simple as over-activity causes muscle strain in the calf. Or, dietary imbalances may cause cramping in the calf. However, calf pain may be a symptom of more serious problems as well. Poor blood flow to the legs (peripheral vascular

A callus is a thickened area of skin on the foot caused by pressure and repeated rubbing, such as from a shoe or sock. The rubbing causes the skin to produce a layer of protective skin (a callus). Calluses vary in size, and can become painful. There are a number of treatments for painful calluses.

What is Capsulitis of the Second Toe? Ligaments surrounding the joint at the base of the second toe form a “capsule,” which helps the joint to function properly. Capsulitis is a condition in which these ligaments have become inflamed.   Although capsulitis can also occur in the joints of the

What is Cavus Foot? Cavus foot is a condition in which the foot has a very high arch. Because of this high arch, an excessive amount of weight is placed on the ball and heel of the foot when walking or standing. Cavus foot can lead to a variety of signs and symptoms, such as pain and instability. It

What Is Charcot Foot?Charcot foot is a condition causing weakening of the bones in the foot that can occur in people who have significant nerve damage (neuropathy). The bones are weakened enough to fracture, and with continued walking the foot eventually changes shape. As the disorder progresses, the

What Is Chronic Ankle Instability? Chronic ankle instability is a condition characterized by a recurring “giving way” of the outer (lateral) side of the ankle. This condition often develops after repeated ankle sprains. Usually the “giving way” occurs while walking or doing other activities,

Clubfoot (congenital talipes equinovarus) is a deformity that is present at birth in about one in every 1,000 children. It occurs in males more often than females, and can affect one or both feet. The feet of an infant with clubfoot point down and inward. It is not painful, but must be corrected to

Cold feet are most commonly a result of medical conditions that cause poor blood flow in the legs or feet, such as peripheral vascular disease (PVD), a blockage or narrowing of the arteries, Raynauds’s phenomenon (cold sensitivity which causes a spasm of the blood vessels), and heart disease. Some

What Is the Achilles Tendon? A tendon is a band of tissue that connects a muscle to a bone. The Achilles tendon runs down the back of the lower leg and connects the calf muscle to the heel bone. Also called the “heel cord,” the Achilles tendon facilitates walking by helping to raise the heel off

Compartment syndrome, a build-up of pressure within the tissue of the foot, is a painful condition that can result in tissue damage. Potential causes are injury (acute compartment syndrome) or exercise (exertional compartment syndrome). When compartment syndrome occurs following an injury, immediate