Bundle branch block is a heart condition in which there is a delay or blockage along the electrical pathways that help control the heartbeat. These pathways, called bundle branches, carry electrical impulses to the left and right sides of the heart’s lower chambers. When a bundle branch block occurs, the heart may beat out of sync, which can affect how …

Bullous pemphigoid is a rare autoimmune skin disorder that causes large, fluid-filled blisters to form on the skin. It most commonly affects older adults and usually develops gradually. The condition occurs when the immune system mistakenly attacks the layers of skin, leading to inflammation and blister formation. Bullous pemphigoid is not contagious and can often be managed effectively with medical …

Bulimia nervosa is a serious eating disorder characterized by repeated episodes of binge eating followed by behaviors intended to prevent weight gain. These behaviors may include self-induced vomiting, misuse of laxatives or diuretics, fasting, or excessive exercise. People with bulimia often feel a loss of control during binge episodes and experience intense concern about body weight and shape. The condition …

Buerger disease, also known as thromboangiitis obliterans, is a rare condition that causes inflammation and blockage of small and medium-sized blood vessels, most commonly in the hands and feet. This reduces blood flow to the affected areas, leading to pain and tissue damage. The disease is strongly linked to tobacco use and typically affects younger adults. Stopping all forms of …

Bruxism, commonly known as teeth grinding, is a condition in which a person clenches or grinds their teeth, often without being aware of it. It can occur during the day while awake or at night during sleep. Bruxism may be temporary or long term and can lead to dental damage, jaw problems, and discomfort if left untreated. Both children and …

Brugada syndrome is a rare genetic heart rhythm disorder that affects the electrical system of the heart. It increases the risk of dangerous irregular heartbeats that can lead to fainting, seizures, or sudden cardiac death. The condition is often inherited and may not cause symptoms until adulthood. Brugada syndrome is more commonly diagnosed in men and can be triggered by …

Brucellosis is a bacterial infection that spreads from animals to humans, most commonly through direct contact with infected animals or by consuming contaminated animal products. It is a zoonotic disease and is more common in regions where livestock vaccination and food safety practices are limited. Brucellosis can affect multiple organs and may become chronic if not treated properly. Symptoms Symptoms …

Bronchiolitis is a common lung infection that affects the small airways of the lungs, called bronchioles. It occurs most often in infants and young children, especially under the age of two. The condition is usually caused by a viral infection and leads to inflammation and mucus buildup in the airways, making breathing difficult. Bronchiolitis is typically mild and improves with …

A broken wrist is a fracture in one or more of the bones that form the wrist joint, including the ends of the forearm bones or the small wrist bones. It is a common injury, often occurring after a fall onto an outstretched hand. Broken wrists can range from small cracks in the bone to severe fractures that disrupt joint …

A broken toe is a fracture in one of the small bones of the toes. It is a common injury that often occurs after direct impact or pressure to the foot. Broken toes can range from minor cracks to more severe fractures that affect alignment or joint movement. Although many broken toes heal with simple care, proper evaluation is important …