Health Library

The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.

Lung and Breathing Conditions

  • Has info on general coughs, pneumonia, tuberculosis, and COPD. Also has chest X-ray info and interactive topics on bronchitis and croup.

  • What is acute respiratory distress syndrome (ARDS)? Acute respiratory distress syndrome (ARDS) is a lung problem. It happens when fluid builds up in the lungs, causing breathing failure and low oxygen levels in the blood. ARDS is life-threatening, because it keeps organs like the brain and kidneys from getting the...

  • Learn what a tracheostomy is and how it is done.

  • Learn how to take care of yourself at home after a tracheostomy.

  • Learn what bronchoscopy is and how it is done.

  • An object can become stuck in the airway at any age but is most common in children younger than age 3. Although a child may not have any symptoms when something is stuck in his or her airway, any of the following symptoms may occur: Rapid, noisy, or high-pitched breathing Increased drooling Difficult...

  • Sometimes after you swallow a pill it may feel like it "got stuck" or didn't go all the way down. This feeling usually goes away within 30 to 60 minutes if you drink liquids or eat a piece of bread. You may not have any symptoms when something is stuck in your esophagus. But when symptoms are present, they may include...

  • What is altitude sickness? Altitude sickness occurs when you cannot get enough oxygen from the air at high altitudes. This causes symptoms such as a headache, loss of appetite, and trouble sleeping. It happens most often when people who are not used to high altitudes go quickly from lower altitudes to 8000 ft (2500...

  • Diseases affecting the lungs—such as asthma, emphysema, chronic bronchitis, and chronic obstructive pulmonary disease (COPD)—share many of the same medicines. These medicines are often delivered through a metered-dose inhaler (MDI). Using an MDI: Delivers most of a measured dose of medicine directly to your lungs...

  • Bronchiectasis (say "brawn-kee-ECK-tuh-sus") is a lung problem in which the breathing tubes (airways) in the lungs are stretched and become larger. It starts when your airways are damaged. The damage may be caused by another health problem—usually...

  • Learn why antibiotics shouldn't be prescribed to children who have a cold or flu.

  • What is bronchiolitis? Bronchiolitis is an infection of the bronchioles, the small air passages in the lungs. It is common in infants and is the leading cause of serious lower respiratory illness. What causes bronchiolitis? Bronchiolitis is caused by a virus, especially respiratory syncytial virus...

  • Learn why you probably don't need an antibiotic when you have acute bronchitis.

  • Other tests for lung infections, such as pneumonia and acute bronchitis, may include: Blood tests or cultures. Blood tests may help tell whether antibodies to a specific organism that can cause pneumonia are present or whether specific viruses, such as influenza (flu) or respiratory syncytial virus (RSV)...

  • Describes acute bronchitis, which is short-term inflammation of the tubes carrying air to the lungs. Explains difference between bronchitis and pneumonia. Includes causes and symptoms like cough. Covers treatment options.

  • Guides through decision to take antibiotics for acute bronchitis. Explains when antibiotics are helpful. Covers risks of antibiotics. Includes interactive tool to help you make your decision.

  • Chronic lung disease in an infant means that damaged tissue in the newborn's lungs is causing breathing and health problems. The lungs trap air or collapse, fill with fluid, and produce extra mucus. Most babies who have chronic lung disease survive....

  • Briefly discusses causes and symptoms of a collapsed lung (also called pneumothorax). Covers how it is diagnosed and treated. Links to info on COPD, asthma, cystic fibrosis, and pneumonia.

  • Most lung cancer is caused by smoking. After you quit, your risk for lung cancer drops gradually. By 10 years, your risk will be about half of what it would have been if you had continued to smoke. This risk continues to decline as the number of years of not smoking increases. Two other lung diseases related to smoking...

  • Diseases affecting the lungs—such as asthma, emphysema, chronic bronchitis, and chronic obstructive pulmonary disease (COPD)—share many of the same medicines. These medicines are often delivered through a metered-dose inhaler (MDI). Using an MDI: Delivers most of a measured dose of medicine directly to your lungs...

  • Learn three ways to get mucus out of your lungs so you can breathe easier.

  • Learn how you can stay as active and healthy as possible with COPD.

  • It's important that you know how to treat your COPD. This is true for everyday care and for when your symptoms get worse. It's also very important that your family, friends, and caregivers know what to do. If you can't care for yourself in an emergency, others need to know how they can help you. Fill out this action...

  • Learn how you'll feel after lung surgery and how to take care of yourself at home.

  • If you have COPD, you know how scary it can be to feel short of breath. Whether you just found out that you have COPD or you've been living with it for a while, you will find helpful information here. Our topics will teach you about the disease and give you some tips on breathing easier. Get the information you need...

  • Learn how lung surgery is done and what you can do to prepare.

  • Learn why you need to keep using your corticosteroid inhaler and how to make it easier to use.

  • Helping or caring for a loved one with COPD (chronic obstructive pulmonary disease) can feel like a lot to take on. There's the challenge of caregiving, because what seems best for someone isn't always what the person wants to do. There's also the...

  • Cooking dinner, putting away laundry, or even just walking across your living room can be exhausting when you have COPD, heart failure, or another long-term (chronic) condition. You may feel at times as though you've lost your ability to live your...

  • A nebulizer is a tool that delivers liquid medicine as a fine mist. You breathe in the medicine through a mouthpiece or face mask. This sends the medicine directly to your airways and lungs. Depending on your needs, you can get a small, portable...

  • Learn how to use a nebulizer correctly.

  • Find motivation to quit by comparing what you tell yourself about smoking and what the facts are.

  • Commit to taking small steps to stay active with COPD.

  • Learn how continuing to smoke will affect your COPD symptoms.

  • Hear how one man with COPD finally quit after many years of smoking.

  • Learn how taking COPD medicines correctly helps prevent flare-ups and trips to the hospital.

  • Learn some exercises for your lungs to make it easier to breathe.

  • Try a few gentle and safe exercises to build your strength.

  • Learn how good nutrition can give you energy and help you stay healthy.

  • Learn how to safely use oxygen in your home.

  • Learn how to avoid the things that make your COPD symptoms worse.

  • Learn how COPD affects your lungs and makes it hard to breathe.

  • When you have COPD, especially if you have chronic bronchitis, you may sometimes have sudden attacks where your breathing and coughing symptoms suddenly get worse and stay that way. These attacks are called COPD exacerbations, or flare-ups. With treatment, many people recover and return to the same level of...

  • Chronic obstructive pulmonary disease (COPD) weakens the structure of the lung and may also damage the tiny air sacs (alveoli) in the lung. When these air sacs break down, larger airspaces known as bullae are formed. Bullae sometimes can become so...

  • Alpha-1 antitrypsin (AAT) is a protein normally found in the lungs and the bloodstream. It helps protect the lungs from the damage caused by inflammation that can lead to emphysema and chronic obstructive pulmonary disease (COPD). People whose...

  • For many people, chronic obstructive pulmonary disease (COPD) gets in the way of sex. Being out of breath makes things difficult. Just thinking about it can make you want to avoid sex. But it doesn't have to be like that. To start, think through...

  • Pulmonary rehabilitation for COPD combines different treatments to: Help you lead a more active life. Help reduce your symptoms. Improve your quality of life. Encourage your active participation in your treatment. Help keep you out of the doctor's office and out of the hospital...

  • In lung volume reduction surgery (LVRS), a large area of damaged lung is removed to allow the remaining lung tissue to expand when you breathe in. This surgery is done only for people with severe chronic obstructive pulmonary disease (COPD) or with...

  • Discusses causes and symptoms of COPD. Looks at chronic bronchitis and emphysema, two diseases that are usually a part of COPD. Covers quitting smoking. Includes treatment with bronchodilators and inhaled corticosteroids. Offers home treatment tips.

  • If you need oxygen at home, it is important to learn how to use and take care of your equipment. This information will help you get the most from your oxygen treatment. If you have low blood oxygen levels, breathing extra oxygen can help you feel better and lead to a longer, more active life. You can travel even...

  • Chronic obstructive pulmonary disease (COPD) slowly damages the lungs and affects how you breathe. COPD's effect on breathing In COPD, the airways of the lungs (bronchial tubes) become inflamed and narrowed. They tend to collapse when you breathe out and can become clogged with mucus. This reduces airflow through the...

  • Covers eating healthy foods when you have COPD. Looks at how shortness of breath may make eating harder and why it is important to eat regularly. Offers tips to make eating easier and help you get necessary nutrition.

  • Covers oxygen treatment to increase oxygen flow to lungs and blood when you have chronic obstructive pulmonary disease (COPD). Explains that oxygen therapy may slow or prevent heart failure. Covers oxygen use during exercise, sleep, and travel.

  • Covers causes of weight and muscle loss when you have chronic obstructive pulmonary disease. Includes why weight loss is a concern with COPD and how to avoid it. Guides you through ways to add nutritious calories and protein to your diet.

  • Covers ways to exercise and stay active with chronic obstructive pulmonary disease (COPD). Explains that exercise makes muscles and heart stronger and may improve shortness of breath. Includes warning to talk to your doctor before starting exercise.

  • Covers using an inhaler to get needed medicine into lungs quickly. Describes dry powder inhalers, how they work, and why to use them. Includes pictures on how to use a dry powder inhaler.

  • You can do things at home to manage COPD (chronic obstructive pulmonary disease). By learning the triggers for COPD and avoiding them, you can help reduce flare-ups. While some triggers may be out of your control, there are others you can easily avoid. Learn and avoid the common triggers for COPD. By avoiding...

  • COPD (chronic obstructive pulmonary disease) is a long-term illness that makes it hard to breathe. When you have COPD, air does not flow easily into and out of your lungs. You may be short of breath, cough a lot, and have a lot of mucus in your lungs. Learning to clear your lungs may help you save energy and oxygen and...

  • Chronic obstructive pulmonary disease, or COPD, is a lung disease that makes it hard to breathe. COPD gets worse over time. You can't undo the damage to your lungs. But you can take steps to breathe easier and feel better. If you have severe COPD, you may find that you take quick, small, shallow breaths. It's...

  • Lung function means how well your lungs work. When you have COPD, your lungs can't move as much air in and out as they should. And the more serious your COPD is, the less air your lungs are able to move. Spirometry tests are used to measure lung function. They measure how much air you breathe out when you take long...

  • If you have COPD, your usual shortness of breath could suddenly get worse. You may start coughing more and have more mucus. This flare-up is called a COPD exacerbation or a COPD attack. A respiratory tract infection or air pollution could set off an attack. Or it may happen after a quick change in temperature or...

  • More good days. It's possible to have them, even with COPD, says Sarah, who found out 3 years ago that she had the disease. COPD sneaked up on Sarah. She began coughing more often, and the coughing lasted longer. Every day it got a little bit harder to breathe. One day she found she couldn't walk up the basement stairs...

  • "I've been smoking ever since I was a teenager. That's 40-something years ago. I never really thought about what could happen to this old body if I kept lighting up. I just knew that I loved to smoke. "Then I started to notice that it was getting harder and harder to do simple things like walk to my mailbox. One time my...

  • "I was so scared when the doctor told me I had emphysema. I was afraid to go anywhere or do anything. I plunged into a big black hole of depression. "Someone told me to go online and hook up with a support group. I did, and it literally changed my life. I was pretty shy at first, and all I did was read what everyone...

  • "Why me?" That's what Cal asked himself over and over after he was diagnosed with severe COPD 5 years ago. "I spent the first 2 years moping around the house, feeling sorry for myself," he says. "I didn't go anywhere, I didn't do anything. I just sat in front of the TV and tried not to think about anything." Then one...

  • Briefly discusses causes of coughs, including common cold, bronchitis, pneumonia, asthma, GERD, COPD, choking, or chemicals in the air. Offers interactive tool to help decide when to seek care. Also offers home treatment and prevention tips.

  • Briefly discusses causes of coughs in children, including common cold, bronchitis, pneumonia, asthma, allergies, choking, or chemicals in the air. Offers interactive tool to help decide when to seek care. Also offers home treatment and prevention tips.

  • This article covers the basics of COVID-19, including common symptoms, treatment, the course of the disease, and how to care for yourself.

  • Find out what COVID-19 is, how it's spread, its symptoms, and how to protect yourself and others.

  • Learn how to take care of yourself if you have COVID-19 and find out ways to prevent spreading it to others.

  • Learn how to take care of yourself if you have been exposed to COVID-19 and find out ways to prevent spreading it to others.

  • Learn what social distancing means and why it's important to keep your distance.

  • Discover things you can do to while keeping a social distance.

  • Learn the 5 steps to hand-washing.

  • The coronavirus disease (COVID-19) is caused by a virus. It is an illness that was first found in Wuhan, China, in December 2019. It has since spread worldwide. The virus can cause fever, cough, and trouble breathing. In severe cases, it can cause pneumonia and make it hard to breathe without help. It can cause...

  • During the coronavirus outbreak, learn what to do if you do if you feel sick.

  • A productive cough helps clear mucus (sputum) and foreign material from the airways. Mucus may be made in the lungs because of bronchitis, pneumonia, or chronic obstructive pulmonary disease (COPD). Colds and allergies may produce mucus that drains down the back of the throat ( postnasal drainage). Home treatment may...

  • Dry coughs that continue after other cold symptoms clear or that occur without other symptoms may be caused by a variety of health problems. Some people start coughing when they breathe very dry, heated air. This can be caused by environmental irritation or allergies. This type of cough may be more noticeable when you...

  • A cough that is more noticeable when your child is lying down is usually caused by mucus running down the back of the throat (postnasal drip) from an upper respiratory infection, such as a cold, sinusitis, or allergy. A child usually has a runny or stuffy nose, may be irritable, and may have a fever. Home treatment is...

  • Coughing is your body's way of getting foreign substances and mucus out of your lungs and upper airway passages. Coughs are often useful, and you should not try to stop them. Sometimes, though, coughs are severe enough to make breathing difficult, cause vomiting, or prevent rest. Home treatment can help you feel more...

  • Belly-breathing fills your lungs fully, slows your breathing rate, and helps you relax. Place one hand on your belly just below the ribs and the other hand on your chest. You can do this while standing, but it may be more comfortable while you are...

  • Hyperventilation symptoms can be similar to symptoms that are caused by another problem. Hyperventilation can also be directly caused by: A medical condition or disease. Examples include: Asthma and chronic obstructive pulmonary disease (COPD). A blood clot, such as a deep vein thrombosis (DVT) or pulmonary embolus...

  • Hyperventilation is breathing that is deeper and more rapid than normal. It causes a decrease in the amount of a gas in the blood (called carbon dioxide, or CO2). This decrease may make you feel lightheaded, have a rapid heartbeat, and be short of breath. It also can lead to numbness or tingling in your hands or feet...

  • Learn how you'll feel after lung surgery and how to take care of yourself at home.

  • Learn how lung surgery is done and what you can do to prepare.

  • This article covers the basics of COVID-19, including common symptoms, treatment, the course of the disease, and how to care for yourself.

  • Find out what COVID-19 is, how it's spread, its symptoms, and how to protect yourself and others.

  • Learn how to take care of yourself if you have COVID-19 and find out ways to prevent spreading it to others.

  • Learn how to take care of yourself if you have been exposed to COVID-19 and find out ways to prevent spreading it to others.

  • Learn what social distancing means and why it's important to keep your distance.

  • Discover things you can do to while keeping a social distance.

  • Learn the 5 steps to hand-washing.

  • The coronavirus disease (COVID-19) is caused by a virus. It is an illness that was first found in Wuhan, China, in December 2019. It has since spread worldwide. The virus can cause fever, cough, and trouble breathing. In severe cases, it can cause pneumonia and make it hard to breathe without help. It can cause...

  • During the coronavirus outbreak, learn what to do if you do if you feel sick.

  • Other tests for lung infections, such as pneumonia and acute bronchitis, may include: Blood tests or cultures. Blood tests may help tell whether antibodies to a specific organism that can cause pneumonia are present or whether specific viruses, such as influenza (flu) or respiratory syncytial virus (RSV)...

  • What are pulmonary (lung) nodules? Pulmonary (lung) nodules are growths or "spots" in the lungs. You may have just one nodule (called a solitary pulmonary nodule) or more than one (called multiple nodules). What causes lung nodules? Lung nodules may be caused by: A lung cancer. A cancer that has spread...

  • Pleural effusion (say "PLER-uhl eh-FYOO-zhun") is the buildup of fluid in the space between tissues lining the lungs and chest wall (pleural space). Because of the fluid buildup, the lungs may not be able to expand completely, and that can make it hard for you to breathe. The lung, or part of it, may collapse. How is...

  • Thoracentesis is a procedure to remove fluid from the space between the lungs and the chest wall called the pleural space. It is done with a needle (and sometimes a plastic catheter) inserted through the chest wall. Ultrasound pictures are often used to guide the placement of the needle. This pleural fluid may be sent...

  • Is this topic for you? This topic provides information about pleurisy, which usually results in chest pain. If you have chest pain that concerns you and that your doctor does not know about, see the topic Chest Problems. What is pleurisy? Pleurisy is swelling ( inflammation) of the thin layers of tissue...

  • Pulmonary hypertension is high blood pressure in the arteries of your lungs. This may also be called pulmonary arterial hypertension (PAH). These arteries carry blood from the heart to the lungs, where the blood picks up oxygen. The walls of the...

  • What is respiratory syncytial virus infection? Respiratory syncytial virus infection, usually called RSV, is a lot like a bad cold. It causes the same symptoms. And like a cold, it is very common and very contagious. Most children have had it at least once by age 2. RSV is usually not something to worry about. But it...

  • Here are some ways you can help comfort your child who has a respiratory illness (such as respiratory syncytial virus (RSV) infection or a cold): Ask your doctor if your child can take acetaminophen or ibuprofen to help relieve fever (if present). Be safe with medicines. Read and follow all instructions on the...

  • This article covers the basics of COVID-19, including common symptoms, treatment, the course of the disease, and how to care for yourself.

  • Find out what COVID-19 is, how it's spread, its symptoms, and how to protect yourself and others.

  • Learn how to take care of yourself if you have COVID-19 and find out ways to prevent spreading it to others.

  • Learn how to take care of yourself if you have been exposed to COVID-19 and find out ways to prevent spreading it to others.

  • Learn what social distancing means and why it's important to keep your distance.

  • Discover things you can do to while keeping a social distance.

  • Learn the 5 steps to hand-washing.

  • The coronavirus disease (COVID-19) is caused by a virus. It is an illness that was first found in Wuhan, China, in December 2019. It has since spread worldwide. The virus can cause fever, cough, and trouble breathing. In severe cases, it can cause pneumonia and make it hard to breathe without help. It can cause...

  • During the coronavirus outbreak, learn what to do if you do if you feel sick.

  • At one time or another, everyone has had a minor facial injury that caused pain, swelling, or bruising. Home treatment is usually all that is needed for mild bumps or bruises. Causes of facial injuries Facial injuries most commonly occur during: Sports or recreational activities, such as ice hockey, basketball...

  • It is important to know the symptoms of difficulty breathing in asthma. If you or your child is having trouble breathing, follow your asthma action plan. You are having mild difficulty breathing if: Your breathing is slightly faster than normal....

  • If you are under a doctor's care for heart failure, the following tips may help you deal with fluid buildup that causes difficulty with breathing. Note: If your symptoms are severe enough to require these measures and you have not been diagnosed with heart failure, call your doctor first. Also, call your doctor...

  • Discusses respiratory problems that babies and children can have. Covers viral and bacterial infections, allergies, and asthma. Offers home treatment tips. Includes interactive tool to help you decide when to call a doctor.

  • Discusses respiratory problems that older children and adults can have. Covers viral and bacterial infections, allergies, and asthma. Offers home treatment tips. Includes interactive tool to help you decide when to call a doctor.

  • Heart rhythm problems, called arrhythmias, can cause a few types of symptoms. These symptoms happen because the heart isn't beating regularly or may not be pumping blood as well as normal. Some of these symptoms include palpitations, lightheadedness, fainting, and shortness of breath. Palpitations Having palpitations...

  • Learn what many people tell themselves about a cough that won't go away.

  • Wheezing is a whistling noise that occurs when the bronchial tubes, which carry air to the lungs, narrow because of inflammation or mucus buildup. Wheezing is often present in asthma. During an asthma attack, the bronchial tubes become smaller. At...

  • Discusses respiratory problems that babies and children can have. Covers viral and bacterial infections, allergies, and asthma. Offers home treatment tips. Includes interactive tool to help you decide when to call a doctor.

  • Discusses respiratory problems that older children and adults can have. Covers viral and bacterial infections, allergies, and asthma. Offers home treatment tips. Includes interactive tool to help you decide when to call a doctor.

  • Asthma is the most common long-lasting (chronic) disease of childhood. It usually develops before age 5. Many children who have allergies get asthma, but not all. And not every child with asthma has allergies. In most cases of persistent asthma, the first symptoms (such as wheezing) start in the first years of life...

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