Fatigue, Shortness of breath: 89 Possible Causes
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What causes fatigue and shortness of breath? 89 possible conditions

See a list of possible causes in order from the most common to the least.

1

Congestive Heart Failure (CHF)

Congestive heart failure (CHF) is a chronic condition that affects the chambers of your heart. CHF refers to fluid buildup around your heart.

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2

Congestive (Dilated) Cardiomyopathy

Congestive cardiomyopathy, also known as dilated cardiomyopathy, is characterized by a weak primary pumping chamber in the heart. Your heart automatically attempts to correct for this inefficiency. In turn, thi...

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3

Chronic Bronchitis

People often develop acute bronchitis after a viral chest infection. Blue-colored lips ankle or foot swelling can result.

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4

Emphysema

Emphysema is a lung disease that, along with chronic bronchitis, represents a type of chronic obstructive pulmonary disease (COPD). Lack of oxygen may give skin and lips a bluish hue.

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5

Cold and Flu Overview

Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared symptoms include headache, cough, sore throat, and more.

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6

Pneumonia

Pneumonia is an infection of the lungs caused by fungi, bacteria, or viruses. General symptoms include chest pain, fever, cough, and difficulty breathing.

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7

Anxiety

What is anxiety? Anxiety often manifests itself as an apprehension about daily life. Learn the basics with this overview of the types of anxiety disorders.

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8

Anemia

Anemia happens when the number of healthy red blood cells in your body is too low. Red blood cells carry oxygen to all of the body's tissues.

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9

Pneumothorax (Collapsed Lung)

Pneumothorax, or collapsed lung, occurs when air is trapped in the space around your lungs. Learn about the types of pneumothorax and the treatment for it.

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10

Heart Failure

Heart failure is characterized by the heart's inability to pump an adequate supply of blood. Learn about heart failure symptoms, causes, types, and treatment.

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11

Lung Cancer Overview

Lung cancer is a cancer that originates in the lungs. Lung cancer often goes undetected in the early stages, since symptoms don't usually present themselves until the advanced stages of the disease.

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12

Bronchiectasis

Bronchiectasis causes symptoms like chronic coughing, coughing up blood, wheezing, and shortness of breath. Read about treatment options.

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13

Obesity

Obesity is an epidemic in the U.S. This condition puts people at a higher risk for serious diseases, such as type 2 diabetes, heart disease, and cancer.

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14

Respiratory Acidosis

This condition is considered a medical emergency. Urgent care may be required.

Respiratory acidosis occurs when the lungs cannot remove enough of the CO2 produced by the body. It is typically caused by an underlying condition.

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15

Bleeding

This condition is considered a medical emergency. Urgent care may be required.

Bleeding can refer to blood loss inside the body (internal bleeding) or blood loss outside of the body (external bleeding). It can cause bruising, pain, and symptoms of shock. Too much bleeding can lead to death.

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16

Coronary Artery Disease (CAD) Overview

CAD occurs when one or more of the coronary arteries begin to narrow due to the build-up of cholesterol and plaque. The blockage of one of these arteries leads to a heart attack.

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17

Iron Deficiency Anemia

Iron-deficiency anemia is the most common type of anemia, which occurs when the body does not have enough of the mineral iron. The body needs iron to produce hemoglobin.

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18

Infectious Mononucleosis

Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).

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19

Hyperventilation

Hyperventilation happens when you suddenly start breathing very quickly. Exhaling more than you inhale causes low carbon dioxide levels.

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20

Cystic Fibrosis

Cystic fibrosis causes severe damage to the respiratory and digestive systems. Learn about its symptoms, causes, diagnosis, and treatment.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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