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Bursitis (bur-SY-tis) is a painful condition that affects the small, fluid-filled sacs — called bursae (bur-SEE) — that cushion the bones, tendons and muscles near your joints. Bursitis occurs when bursae become inflamed. The most common locations for bursitis are in the shoulder, elbow and hip. But you can also have bursitis by your knee, Read more…

Burns can be minor medical problems or life-threatening emergencies. Many people die each year from fire-related burn injuries. Electricity and chemicals also cause severe burns. Scalding liquids are the most common cause of burns in children. Treatment of burns depends on the location and severity of the injury. Sunburns and small scalds can usually be Read more…

Burning mouth syndrome is the medical term for ongoing (chronic) or recurrent burning in the mouth without an obvious cause. The discomfort may affect your tongue, gums, lips, inside of your cheeks, roof of your mouth or widespread areas of your whole mouth. Burning mouth syndrome appears suddenly and can be severe, as if you Read more…

A bunion is a bony bump that forms on the joint at the base of your big toe. A bunion forms when your big toe pushes against your next toe, forcing the joint of your big toe to get bigger and stick out. The skin over the bunion might be red and sore. Wearing tight, Read more…

Bundle branch block is a condition in which there’s a delay or obstruction along the pathway that electrical impulses travel to make your heart beat. The delay or blockage may occur on the pathway that sends electrical impulses to the left or the right side of the bottom chambers (ventricles) of your heart. Bundle branch Read more…

Bullous pemphigoid (BUL-us PEM-fih-goid) is a rare skin condition that causes large, fluid-filled blisters. The blisters develop on areas of skin that often flex — such as the lower abdomen, upper thighs or armpits. Bullous pemphigoid is most common in people older than age 60. Bullous pemphigoid occurs when your immune system attacks a thin Read more…

Bulimia (boo-LEE-me-uh) nervosa, commonly called bulimia, is a serious, potentially life-threatening eating disorder. People with bulimia may secretly binge — eating large amounts of food — and then purge, trying to get rid of the extra calories in an unhealthy way. For example, someone with bulimia may force vomiting or engage in excessive exercise. Sometimes Read more…

Buerger’s disease (thromboangiitis obliterans) is a rare disease of the arteries and veins in the arms and legs. In Buerger’s disease, your blood vessels become inflamed, swell and can become blocked with blood clots (thrombi). This eventually damages or destroys skin tissues and may lead to infection and gangrene. Buerger’s disease usually first shows in Read more…