Symptoms and Causes

Overview Traveler’s diarrhea is a common digestive problem. It affects people visiting places with different climates or sanitation standards. The main symptoms include loose stools and…

Overview Mitral valve disease affects the valve connecting the heart’s left chambers. This valve sits between the left atrium (upper chamber) and left ventricle (lower chamber)….

Overview Primary biliary cholangitis is an autoimmune condition that causes inflammation and gradual destruction of the bile ducts. This disease was previously known as primary biliary…

About Blood Cell Deficiency Blood cell deficiency affects the body’s ability to make enough new blood cells. This leads to feeling tired, getting infections easily, and…

Overview Acromegaly is a rare disorder. It happens when the pituitary gland produces too much growth hormone. This small gland in the brain usually develops a…

Overview Myoclonus describes quick, involuntary jerking movements that people cannot control. Common examples include: These normal types happen in healthy individuals and typically don’t require medical…

Overview Flatfeet occurs when the arches inside the feet flatten under pressure. When standing, people with this condition have feet that point outward with the entire…

Overview Nightmares are unsettling dreams that cause negative emotions like fear or anxiety and typically wake the dreamer. While most people experience nightmares occasionally, they’re particularly…

Overview Primary progressive aphasia is a rare neurological condition that gradually affects communication skills. People with this disorder have difficulty expressing thoughts and may struggle to…

Overview Atrial flutter is a heart rhythm disorder. It causes the heart to beat in a more regular pattern than atrial fibrillation, though a person can…