Breathlessness (shortness of breath)
New or worsening breathlessness always deserves a medical assessment. Sudden severe breathlessness, breathlessness with chest pain, leg swelling, coughing up blood, blue lips or fainting is a medical emergency — call 998. Gradual breathlessness on exertion can be due to asthma, anaemia, weight, deconditioning, heart or lung disease, and needs a GP assessment with tests.
- · Sudden severe breathlessness
- · Breathlessness with chest pain or pressure
- · Coughing up blood
- · Blue lips or fingertips
- · Fainting or collapse
- · One-sided leg swelling with breathlessness
- · Rapidly worsening breathlessness in a known asthmatic
Call 998 (UAE ambulance) or attend the nearest emergency department immediately. Do not drive yourself.
Key information
- Symptom
- Breathlessness
- Category
- Breathing & lungs
- Common possible causes
- Anxiety or panic attacks, Asthma, Chest infection, Anaemia
- Tests that may be considered
- Full blood count (checks for anaemia), Ferritin, Kidney function and electrolytes, BNP (heart failure)
- Clinic assessment
- Available same day
- Home doctor visit
- Available across Dubai
- Home blood test
- Available across Dubai
- Date reviewed
- 2026-07-01
What this symptom means
Breathlessness (dyspnoea) is the uncomfortable awareness of breathing. It can be acute (minutes to hours) or chronic (weeks to months).
Common possible causes
- · Anxiety or panic attacks
- · Asthma
- · Chest infection
- · Anaemia
- · Deconditioning and obesity
- · COVID-19 and post-viral breathlessness
- · Allergic reaction
Less common possible causes
- · COPD
- · Interstitial lung disease
- · Pleural effusion
- · Anxiety hyperventilation syndrome
Serious causes that must not be missed
- · Heart attack
- · Heart failure
- · Pulmonary embolism
- · Pneumothorax
- · Severe asthma or COPD exacerbation
- · Pneumonia
- · Anaphylaxis
When a same-day GP is appropriate
- · New breathlessness on mild exertion
- · Breathlessness with cough or fever
- · Worsening breathlessness in a known lung or heart condition
When a routine GP appointment is fine
- · Gradual breathlessness on exertion over weeks or months
- · Suspected asthma requiring spirometry
Questions a doctor may ask
- · How suddenly did it start?
- · How much can you do before you get breathless?
- · Any chest pain, cough, wheeze or fever?
- · Any leg swelling or pain?
- · Any known asthma, heart disease or anaemia?
- · Do you smoke or vape?
- · Any recent long-haul flight or surgery?
History factors that may matter
- · Asthma, COPD or heart disease
- · Smoking
- · Recent immobility or surgery
- · Pregnancy
- · Family history of clots
What may happen during the examination
- · Respiratory rate, oxygen saturation, pulse, blood pressure, temperature
- · Full chest and heart examination
- · Leg examination for DVT
- · ECG
Tests that may be considered
Blood tests
- · Full blood count (checks for anaemia)
- · Ferritin
- · Kidney function and electrolytes
- · BNP (heart failure)
- · D-dimer (pulmonary embolism screening, hospital setting)
- · Thyroid function
- · HbA1c
Other tests
- · ECG
- · Chest X-ray
- · Spirometry and peak flow
- · Echocardiogram via cardiology referral
When a specialist referral may be considered
- · Cardiology for suspected heart failure or arrhythmia
- · Respiratory for chronic lung disease or diagnostic uncertainty
Possible treatment approaches
- · Treatment is directed at the underlying cause
- · Inhalers for asthma or COPD
- · Iron replacement for anaemia
- · Diuretics and cardiology care for heart failure
- · Anticoagulation and hospital care for pulmonary embolism
Safe self-care
- · Sit upright and try to slow the breath
- · Use rescue inhaler if you have one
- · Avoid triggers — smoke, dust, allergens
- · Structured exercise and weight management for chronic breathlessness
Best avoided
- · Assuming new breathlessness is ‘just anxiety’
- · Delaying assessment of exertional breathlessness
How Aafiyah can help
- · Same-day GP assessment in clinic or at home
- · Bedside oxygen, ECG and clinical examination
- · Blood tests, chest X-ray and spirometry referral
- · Urgent cardiology or respiratory referral where needed
Related tests
Related conditions
Related symptoms
Frequently asked questions
When is breathlessness an emergency?+
Call 998 for sudden severe breathlessness, breathlessness with chest pain, coughing up blood, blue lips, fainting or one-sided leg swelling. These may indicate heart attack, pulmonary embolism or severe asthma.
What tests are done for breathlessness?+
Assessment typically includes ECG, chest X-ray, blood tests (full blood count, ferritin, BNP, thyroid) and spirometry. Further tests are guided by findings.
Can Dubai’s heat or air quality cause breathlessness?+
Yes — heat, humidity and dust can worsen asthma and allergic conditions. Persistent breathlessness still deserves proper assessment to exclude other causes.
Medical references
- · NICE CKS — Breathlessness — cks.nice.org.uk
- · NHS — Shortness of breath — nhs.uk
Medically reviewed by: Dr Shahbaz Afzal — British-trained Family Medicine Consultant, DHA-licensed
Written: 2026-07-01 · Reviewed: 2026-07-01 · Next review: 2027-01-01
This page provides general medical information for people in Dubai and the UAE. It does not replace personal medical advice, diagnosis or treatment. Always seek the advice of a qualified clinician about any medical concern.
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