Possible Causes |
Care and Treatment |
When to Call the Doctor
What is dyspnea (shortness of breath)?
When you feel like you can’t get enough air into your lungs, it’s called shortness of breath. Doctors call this frightening feeling dyspnea. It can be a sign of many different health problems. You might describe it as having a tight feeling in your chest or not being able to breathe deeply.
Shortness of breath is often a symptom of heart and lung problems. But it can also be a sign of other conditions like asthma, allergies or anxiety. Intense exercise or having a cold can also make you feel breathless.
Is dyspnea dangerous?
Sometimes, shortness of breath can be a sign of a life-threatening medical condition. See a doctor if you:
Suddenly have difficulty breathing.
Have severe breathlessness (can’t catch your breath).
Still feel breathless after 30 minutes of rest.
Who is affected by shortness of breath?
Because it has so many causes, shortness of breath is very common. Anyone can experience it, but it happens more often in people with:
Obesity: Being very overweight can strain your lungs and make it difficult to breathe.
Poor fitness: Being out of shape from inactivity or illness can cause breathlessness.
What causes acute dyspnea or shortness of breath?
Factors that may cause acute (goes away after a week or so) shortness of breath include:
Allergies: People often feel short of breath during an allergic reaction.
Anxiety: Anxiety can cause hyperventilation (rapid, heavy breathing).
Choking: A blockage in your throat can make it difficult for air to move in and out of your lungs. Inhaling food or an object into your lungs also blocks airflow.
Pulmonary embolism: This happens when you have a blood clot in your lungs. This condition is a medical emergency.
Heart attack: A blockage that stops blood flow to the heart can cause frightening breathlessness. If you notice this symptom along with other heart attack symptoms, call 911.
Infection: An infection like bronchitis or pneumonia may produce mucous that blocks airflow to parts of the lungs. This can interfere with oxygen diffusion to the blood.
Injury: A broken rib can make breathing painful and difficult. Bleeding and anemia can lower the number of red blood cells, which lessens the amount of oxygen carried in the blood.
Medication: Certain medicines can cause a tight feeling in the chest. Statins (medicines that reduce fats in the blood) and beta blockers given for hypertension in asthmatic individuals may cause this symptom.
Extreme temperatures. Being very hot or very cold can make you feel like you are having trouble breathing.
Care and Treatment
How can my doctor manage shortness of breath?
Your doctor will help you manage dyspnea by first identifying and then treating the condition causing your breathing trouble. Depending on the underlying condition, your treatment may include:
Exercise: Improving your physical fitness can strengthen your heart and lungs. Better overall health can help you feel less winded during activity. Even with a heart or lung condition, cardiovascular rehabilitation might help. The provider might also suggest that you learn breathing techniques.
Medication: Inhaled drugs called bronchodilators can relax your airways in asthma and in COPD. Medication to relieve pain or anxiety can ease breathlessness.
Oxygen therapy: Receiving extra oxygen through a mask or tube in the nostrils can help you breathe more comfortably. This is only appropriate when the blood oxygen level is measured by a healthcare professional and shown to be low.
How will a doctor determine what is causing my shortness of breath?
Tests might include:
Physical exam: This would cover things like taking your temperature and listening to your chest. A fever could indicate an infection.
Pulse oximetry: A provider uses a finger sensor to see how much oxygen you have in your blood.
Chest X-ray, CT scans or other special imaging tests: These would suggest a cause of breathlessness if you do not already have a diagnosis of a chronic condition.
Blood tests: These could show anemia, infections and other conditions.
Lung function tests: These tests indicate how well you are breathing.
Cardiopulmonary exercise testing: These tests indicate the volume of oxygen taken in and carbon dioxide let out during exercise performed on treadmills or stationary bikes.
How can I ease or relieve shortness of breath?
You may prevent or relieve shortness of breath on your own. Helpful steps may include:
Avoiding inhaling chemicals that can irritate your lungs, like paint fumes and car exhaust.
Practicing breathing and/or relaxation techniques to improve your breathing function.
Stopping smoking, if you smoke. Don’t start smoking if you don’t now smoke.
Reaching and maintaining a healthy weight.
Avoiding activity in times when temperatures are very hot or very cold, or when the humidity is high. If you have lung disease, observe air pollution (ozone) alerts issued on radio and TV.
Making sure your equipment is in good working order when you use oxygen.
When to Call the Doctor
When should I call my doctor about shortness of breath?
If you have a condition that means you might be feeling short of breath often, make sure to follow the suggestions of your healthcare provider about paying attention to your health every day. This might include doing peak flow testing in COPD and asthma or weighing yourself every day to make sure you are not retaining water.
Call your doctor if you have severe shortness of breath, or if your breathlessness interferes with your everyday activities. Sometimes, shortness of breath is a sign of a medical emergency that requires immediate treatment. Go to the hospital if you still have difficulty breathing after resting for 30 minutes. Also get emergency help right away if you have:
Blue fingers or lips.
Chest pain or heaviness, particularly if associated with sweating and nausea.
Stridor (high-pitched sound when inhaling) or wheezing (whistling sound) when breathing in or out.
Swollen ankles or feet.
American Academy of Family Physicians. Shortness of Breath. (https://familydoctor.org/condition/shortness-of-breath/) Accessed 1/31/2020.
American Lung Association. Shortness of Breath Symptoms, Causes and Risk Factors. (https://www.lung.org/lung-health-and-diseases/lung-disease-lookup/shortness-of-breath/shortness-breath-symptoms-risks.html) Accessed 1/31/2020.
Chest Foundation. Shortness of Breath. (https://foundation.chestnet.org/patient-education-resources/shortness-of-breath-2/) Accessed 1/31/2020.
Viniol A, Beidatsch D, Frese T, et al. Studies of the symptom dyspnoea: a systematic review. BMC Fam Pract. 2015;16:152.
Last reviewed by a Cleveland Clinic medical professional on 12/20/2019.