Patient Basics: Abdominal Aortic Aneurysm
Originally published by Harvard Health. What Is It? An abdominal aortic aneurysm is an abnormal swelling in the aorta. It...
Health A to Z
Authoritative, patient-focused summaries of key ailments and diseases
Patient Basics: Absence Seizures (Petit Mal Seizures)
Originally published by Harvard Health. What Is It? The brain's nerve cells (neurons) communicate by firing tiny electric signals. During...
Patient Basics: Ankle Fracture
Originally published by Harvard Health. What Is It? When a bone breaks or cracks, the injury is called a fracture....
Patient Basics: Ankle Sprain
Originally published by Harvard Health. What Is It? An ankle sprain is a stretch or tear in one or more...
Patient Basics: Ankylosing Spondylitis
Originally published by Harvard Health. What Is It? Ankylosing spondylitis is a form of arthritis that mainly affects the lower...
Patient Basics: Anorexia Nervosa
Originally published by Harvard Health. What Is It? Anorexia nervosa is an eating disorder that affects about 1 in 100-200...
Patient Basics: Antibiotic-Associated Diarrhea
Originally published by Harvard Health. What Is It? In healthy people, many different species of bacteria live inside the bowel....
Patient Basics: Antiphospholipid Antibody Syndrome (APS)
Originally published by Harvard Health. What Is It? Antiphospholipid antibody syndrome (APS) is a condition defined by the presence of...
Patient Basics: Antisocial Personality Disorder
Originally published by Harvard Health. What Is It? Antisocial personality disorder, like other personality disorders, is a longstanding pattern of...
Patient Basics: Aplastic Anemia
Originally published by Harvard Health. What Is It? Aplastic anemia is a rare, potentially fatal disease in which the bone...