Atrial septal defect (ASD)
Overview
An atrial septal defect (ASD) is a hole in the wall between the two upper chambers of your heart (atria). The condition is present at birth (congenital).
Small defects
Atrial flutter
Overview
In atrial flutter, your heart’s upper chambers (atria) beat too quickly. This causes the heart to beat in a fast, regular rhythm.
Atrial flutter is a type of heart rhythm
Atrial fibrillation
Overview
Atrial fibrillation is an irregular and often rapid heart rate that can increase your risk of stroke, heart failure and other heart-related complications.
During atrial fibrillation,
Atopic dermatitis (eczema)
Overview
Atopic dermatitis (eczema) is a condition that makes your skin red and itchy. It’s common in children but can occur at any age. Atopic dermatitis is long lasting
Athlete’s foot
Overview
Athlete’s foot (tinea pedis) is a fungal infection that usually begins between the toes. It commonly occurs in people whose feet have become very sweaty while confined
Atelectasis
Atherosclerosis (See: Arteriosclerosis / atherosclerosis)
Overview
Atelectasis (at-uh-LEK-tuh-sis) — a complete or partial collapse of a lung or lobe of a lung — develops when the tiny
Ataxia
Overview
Ataxia describes a lack of muscle control or coordination of voluntary movements, such as walking or picking up objects. A sign of an underlying condition, ataxia can affect various movements,
Astrocytoma
AT (See: Atrial tachycardia)
Astrocytoma is a type of cancer that can form in the brain or spinal cord. Astrocytoma begins in cells called astrocytes that support nerve cells.
See also: What
Astigmatism
Overview
Astigmatism (uh-STIG-muh-tiz-um) is a common and generally treatable imperfection in the curvature of your eye that causes blurred distance and near vision.
See also: What do dreams
Asthma attack
Asthma, childhood (See: Childhood asthma)
Asthma, exercise-induced (See: Exercise-induced asthma)
Asthma, occupational (See: Occupational asthma)
See also: What do dreams about elevator mean?
Overview
During
Asthma
Overview
Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.
See also:
Aspergillosis
Overview
Aspergillosis is an infection caused by a type of mold. The illnesses resulting from aspergillosis infection usually affect the respiratory system, but their signs and severity vary
Ascariasis
ASD (See: Atrial septal defect)
Overview
Ascariasis (as-kuh-RIE-uh-sis) is a type of roundworm infection. These worms are parasites that use your body as a host to mature from larvae or eggs
Asbestosis
Overview
Asbestosis (as-bes-TOE-sis) is a chronic lung disease caused by inhaling asbestos fibers. Prolonged exposure to these fibers can cause lung tissue scarring and shortness of breath.
Arthritis
Arthritis, basal joint (See: Thumb arthritis)
Arthritis, gouty (See: Gout)
Arthritis, infectious (See: Septic arthritis)
Arthritis, juvenile idiopathic (See: Juvenile idiopathic arthritis)
Arthritis,