Shortness of Breath

Overview

Shortness of breath, also called dyspnea (disp-nee-uh), is the uncomfortable feeling that you can't get enough air into your lungs. It can happen suddenly or come on slowly over days or weeks.

Yes, shortness of breath is very common. Almost everyone will experience it at some point, for example after heavy exercise or with a cold. However, when it happens without a clear reason or becomes worse over time, it needs medical attention.

It can affect anyone at any age. People with lung conditions like asthma or COPD, heart conditions, or who smoke are more likely to have it. Anxiety and panic attacks can also cause shortness of breath.

Symptoms

Common symptoms

• Feeling like you can't take a deep breath
• Tightness in the chest
• Rapid or shallow breathing
• Breathing faster than usual
• Feeling like you are suffocating or drowning

Symptoms in children

• Flaring nostrils when breathing
• Using stomach muscles to breathe (sucking in the belly)
• Making grunting sounds with each breath
• Refusing to eat or drink
• Being unusually tired or irritable

Symptoms in older adults

• Breathlessness with activities they used to do easily, like walking up stairs
• Waking up short of breath at night
• Swollen ankles or feet along with shortness of breath
• Wheezing or a chronic cough

Causes

Main causes

• Lung conditions like asthma, COPD, pneumonia, or a blood clot in the lung
• Heart conditions such as heart failure, heart attack, or abnormal heart rhythm
• Anxiety or panic attacks
• Anaemia (low red blood cells, which carry oxygen)
• Allergic reactions or severe infections like COVID-19

Risk factors

• Smoking or long-term exposure to air pollution
• Being very overweight (obesity)
• Having a chronic lung or heart condition
• A family history of blood clots or lung disease
• Living with high levels of stress or anxiety

When to see a doctor

See a doctor urgently if:

• If you have sudden, severe shortness of breath
• If you have chest pain, blue lips, or feel faint

Book a routine appointment if:

• If you often get short of breath doing everyday tasks like walking or climbing stairs
• If you wake up at night feeling breathless
• If your usual breathing medicines (like an inhaler) do not work as well as before

Diagnosis

To find the cause, your doctor will ask about your symptoms and medical history and do a physical exam, especially listening to your lungs and heart. They may also order tests.

Tests that may be done

• Pulse oximetry — a small clip on your finger that measures oxygen in your blood
• Chest X-ray — to look at your lungs and heart
• Breathing tests (spirometry) — you blow into a tube to see how well your lungs work
• Blood tests — to check for anaemia, infection, or heart strain
• Electrocardiogram (ECG) — to check your heart's rhythm

What to expect at your appointment

Most tests are quick and painless. You may be asked to walk around or exercise while wearing sensors. Your doctor will explain what each test involves. Results may take a few hours to a few days.

Treatment

Treatment for shortness of breath depends on the cause. The goal is to help you breathe easier and manage the underlying condition. Your doctor will create a plan just for you.

Self-care at home

• Sit upright — do not lie flat. Lean forward slightly with your hands on your knees or a table.
• Use pursed-lip breathing: breathe in through your nose, then pucker your lips like you are blowing out a candle and breathe out slowly.
• Stay calm — anxiety can make breathlessness worse. Try slow, deep breaths or a calming technique you like.
• Avoid smoke, strong perfumes, and other lung irritants.

Medical treatments

Doctors may prescribe treatments such as inhaled medications to open up the airways (bronchodilators), oxygen therapy if your oxygen levels are low, or medicines to treat the underlying cause (like antibiotics for a lung infection, or water pills for heart failure). In some cases, pulmonary rehabilitation — a programme of exercise and education — can help improve breathing.

When is surgery considered?

Surgery is rarely needed, but in some conditions like severe COPD or a large blood clot in the lung, procedures such as lung volume reduction or removing the clot may be considered.

Living with this condition

Living with ongoing shortness of breath can be challenging, but many people manage well with the right treatment. Pace yourself — break tasks into smaller steps and rest between them. Use breathing techniques when you feel breathless. Keep your medications handy and know when to use them.

Lifestyle tips

• Quit smoking — this is the most important thing you can do for your lungs.
• Avoid air pollution, dust, and strong fumes.
• Get enough sleep and manage stress through relaxation or mindfulness.
• Learn your triggers and plan ahead (e.g., avoid going out in very cold air).

Diet and exercise

Eating small, balanced meals can help — a full stomach can press on your lungs and make breathing harder. Gentle exercise, as advised by your doctor, can strengthen your breathing muscles and improve your stamina. Even a short daily walk can help.

Mental health and emotional wellbeing

Shortness of breath can be frightening and may cause anxiety or depression. It is common to feel worried about not getting enough air. Talk to your doctor if you feel this way — they can offer support or refer you to a counsellor. Remember: you are not alone.

Prevention

Not all causes of shortness of breath can be prevented, but you can lower your risk. Avoid smoking, stay active, eat healthily, and manage any long-term conditions like asthma or heart disease. Treating a cold or chest infection early may help prevent it from turning into pneumonia.

Vaccines

Getting recommended vaccines, such as the flu vaccine and the pneumonia vaccine, can help prevent infections that might cause shortness of breath. Ask your doctor which vaccines are right for you.

Screening programmes

There is no routine screening for shortness of breath itself. But if you have a risk factor like a family history of lung disease or if you smoke, your doctor may recommend regular check-ups and breathing tests.

Complications

If left untreated

• If the underlying cause is not treated, shortness of breath can get worse over time, making daily activities harder.
• Severe lack of oxygen can damage vital organs like the heart and brain.
• It can lead to emergency hospital visits if sudden breathing attacks are not managed.

Long-term outlook

For most people, shortness of breath can be managed effectively once the cause is found. Many people live full, active lives with conditions like asthma or COPD by using the right treatments and making healthy choices. Never lose hope — help is available, and breathing can get better.

Find support

International organisations

• American Lung Association ↗
• European Lung Foundation ↗

Local organisations

• Asthma + Lung UK ↗ · United Kingdom
• British Heart Foundation ↗ · United Kingdom

Helplines

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