In-depth

Acute kidney failure

Acute lymphocytic leukemia

Acute myelogenous leukemia (AML)

Allergies

Amniotic fluid embolism

Amyloidosis

Angina

Aortic aneurysm

Aortic dissection

Aortic valve regurgitation

Aortic valve stenosis

Aplastic anemia

Aplastic anemia occurs when your bone marrow stops producing enough new blood cells. It's a serious problem, but treatments are available.

ARDS

Asbestosis

Asbestosis is a lung disease resulting from prolonged exposure to asbestos, a product once commonly used in the building and manufacturing industries.

Ascariasis

Aspergillosis

Asthma

Asthma attack

Asthma attack: Find out what the symptoms are and how to treat an asthma attack.

Atrial septal defect

Bradycardia

Broken heart syndrome

Broken heart syndrome, also called stress cardiomyopathy, mimics a heart attack. Discover how stress could trigger this puzzling condition.

Cardiogenic shock

Cardiomyopathy

Chest pain

Chronic kidney disease

Chronic kidney disease, often caused by diabetes or high blood pressure, is the gradual loss of kidney function. Early detection and treatment can help.

Churg-Strauss syndrome

Churg-Strauss syndrome is a rare disorder marked by blood vessel inflammation that affects organs throughout the body. Asthma is the most common sign.

Coarctation of the aorta

Congenital heart defects in children

Congenital heart disease in adults

COPD

Cystic fibrosis

Diabetic coma

Diabetic ketoacidosis

DiGeorge syndrome

Dilated cardiomyopathy

Drug allergy

Dust mite allergy

Dust mite allergy, an immune system reaction to inhaled dust mite "debris," causes hay fever symptoms and may cause allergy-induced asthma.

Egg allergy

Emphysema

Tobacco smoke causes most cases of emphysema. Although quitting smoking can't reverse the damage, it can help keep this serious lung disease from becoming worse.

Endocarditis

Enlarged heart

Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.

Factor V Leiden

Gangrene

Generalized anxiety disorder

Hantavirus pulmonary syndrome

Hantavirus pulmonary syndrome is initiated by a rodent-carried virus that infects the lung tissues, bringing on flu-like symptoms, respiratory problems and even death.

Heart attack

Heart disease

Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.

Heart failure

Heart murmurs

Heart palpitations

Heart palpitations are skipped, fluttering or racing heartbeats that aren't usually a symptom of a serious heart problem. Discover the causes and symptoms of this condition.

HIV/AIDS

Hurthle cell cancer

Hyperglycemia in diabetes

Iron deficiency anemia

Iron deficiency anemia may leave you feeling sapped of energy. This condition is especially common in women. Iron supplements usually help.

Left ventricular hypertrophy


Legionnaires' disease

Legionnaires' disease, a severe form of pneumonia, is caused by bacteria that can live in water in air conditioning systems, showers and spas.

Lung cancer

Lupus

Menorrhagia

Mesothelioma

Mitral valve prolapse

Mitral valve prolapse occurs when the valve separating two of your heart's chambers malfunctions. The disorder usually isn't serious and often doesn't require surgical treatment.

Mitral valve stenosis

Myelodysplastic syndromes

Myelofibrosis

In myelofibrosis, healthy bone marrow is replaced with scar tissue, leading to severe anemia and fatigue.

Myocardial ischemia

Myocarditis

Ovarian hyperstimulation syndrome

Ovarian hyperstimulation syndrome (OHSS) — Comprehensive overview covers symptoms, treatment of this complication of infertility treatment.

Panic attacks and panic disorder

Peanut allergy

Pericarditis

Pleurisy

Pleurisy is the painful inflammation of the membranes that surround your lungs. The cause can be one of a number of underlying conditions.

Pneumonitis

Pneumonitis is a general term for lung inflammation. It can cause difficulty breathing, often accompanied by a cough.

Polycythemia vera

Polycythemia vera is a rare blood disorder in which a person's bone marrow makes too many blood cells.

Polyhydramnios

Polymyositis

Pulmonary edema

Pulmonary embolism

Pulmonary fibrosis

Pulmonary fibrosis results from scar tissue that forms in your lungs. This affects your ability to breathe and obtain enough oxygen.

Pulmonary valve stenosis

Rheumatic fever

Rheumatic fever, an inflammatory disease triggered by untreated or poorly treated strep throat, can cause permanent heart damage.

Sick sinus syndrome

Sleep apnea

Somatic symptom disorder

Spontaneous coronary artery dissection (SCAD)

Find out about this rare cause of heart attack in young, healthy people.

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

Tetralogy of Fallot

Thalassemia

Thalassemia is an inherited blood disorder, characterized by less hemoglobin and fewer red blood cells than normal. When necessary, treatment includes blood transfusions.

Thyroid nodules

Most thyroid nodules — lumps in the thyroid gland — cause no problems. But nodules that affect swallowing, produce excess thyroid hormone or are malignant require treatment.

Tricuspid atresia

Tuberous sclerosis


Ventricular fibrillation

Ventricular septal defect

Vitamin deficiency anemia

Lacking certain vitamins can lead to vitamin deficiency anemia. Find out which vitamins are linked to this condition.

Von Willebrand disease

Von Willebrand disease is an inherited bleeding condition caused by a deficit in or impairment of a protein essential for blood clotting.

Wolff-Parkinson-White syndrome

An abnormal electrical pathway in the heart causes the rapid heart rate of Wolff-Parkinson-White syndrome.

Feb. 27, 2016