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What Is Antiphospholipid Syndrome? Antiphospholipid syndrome (APS), or often called Hughes syndrome, is an autoimmune, hypercoagulable state caused by antiphospholipid antibodies. Antiphospholipid syndrome can...

What Is Anorgasmia ? Anorgasmia, or Coughlan's syndrome, is a type of sexual dysfunction in which a person cannot achieve orgasm despite adequate stimulation. In...

What Is Anorexia Nervosa? Anorexia nervosa, referred simply as anorexia, is an eating disorder marked by an intense fear of...

What Is Anal Fistula? An anal fistula is a small channel that develops between the end of the bowel, known...

What Is Acromegaly? Acromegaly is an extremely rare syndrome that results when the anterior pituitary gland produces excess growth hormone (GH) after epiphyseal plate closure at puberty. Because...

What Is Atrial Septal Defect? Atrial septal defect is a congenital heart defect in which blood flows between the atria...

What Is Aortic Valve Stenosis? Aortic stenosis (AS) is the narrowing of the exit of the left ventricle of the...

What Is Aortic Dissection? An aortic dissection is a serious condition in which the inner layer of the aorta, the...

What Is Autonomic Neuropathy? Autonomic neuropathy occurs when the nerves that control involuntary bodily functions are damaged. The nerve damage...

What Is Attention Deficit Hyperactivity Disorder (ADHD)? Attention Deficit Hyperactivity Disorder is a neuro developmental psychiatric disorder in which there are significant...