When to Seek Help
Signs that your breathing needs medical attention.
點解呢個 事情
Breathlessness can be a sign of a serious medical condition that needs prompt attention. Knowing when to seek help can make the difference between early treatment and a medical emergency.
Warning Signs
Seek urgent medical attention if you experience any of these:
🚨 Sudden severe breathlessness
Breathlessness that comes on suddenly and severely, especially if you’re at rest or it wakes you from sleep. This could indicate a pulmonary embolism, heart problem, or severe asthma attack.
Emergency — Call 999 immediately
🚨 Chest pain with breathlessness
Shortness of breath accompanied by chest pain, pressure, or tightness could be a sign of a heart attack or pulmonary embolism. Do not wait to see if it improves.
Emergency — Call 999 immediately
🚨 Blue lips or fingertips
Bluish colouring (cyanosis) of the lips, face, or fingertips indicates dangerously low oxygen levels. This requires immediate medical attention.
Emergency — Call 999 immediately
⚠️ Breathlessness at rest or night
Needing to sit up to breathe, waking up gasping for air, or breathlessness that occurs while resting could indicate heart failure or worsening lung disease. Seek medical attention within hours.
Urgent — See doctor same day
⚠️ Fever with cough and breathlessness
Breathlessness with fever, productive cough, or chest pain may indicate pneumonia or a chest infection. This is especially serious in older adults.
Urgent — See doctor same day
Non-Urgent Symptoms
These symptoms are less immediately dangerous but should still be discussed with your doctor:
Gradual worsening of breathlessness
If you notice you’re becoming breathless with less activity than before, or your usual activities are getting harder, schedule an appointment with your doctor. This could indicate progressive lung disease.
Persistent cough with phlegm
A cough that lasts more than 3 weeks, especially with phlegm production, could indicate COPD, asthma, or other respiratory conditions.
Wheezing or whistling sounds
Regular wheezing when breathing could be a sign of asthma, COPD, or other airway narrowing that needs assessment.
Breathlessness affecting daily life
If breathlessness stops you from doing things you enjoy or limits your independence, your care team can help with treatment and strategies to improve function.
Learn More: When to Seek Help
Trusted medical resources on breathing emergencies:
American Lung Association — Shortness of Breath: Warning Signs
Covers warning signs and when shortness of breath requires urgent medical attention.
NHS — Shortness of Breath
Clear guidance on when breathing difficulty needs urgent or non-urgent medical assessment.
Community Resources (Hong Kong)
Where to get help locally:
Emergency services — Call 999
For sudden severe breathlessness, chest pain with breathing difficulty, or blue lips/fingertips, call 999 immediately or go to the nearest Accident & Emergency department.
Hospital Authority general out-patient clinics
For non-urgent respiratory symptoms, same-day appointments are available at general out-patient clinics across all 18 districts.
District Health Centres & DHC Expresses
Offer health risk assessments and can connect you with appropriate respiratory care services.
- American Lung Association. Shortness of Breath: Causes, Warning Signs & When to Seek Help.
- NHS. Shortness of Breath — Symptoms and When to Seek Help.
- Hospital Authority Hong Kong. Accident & Emergency Services.
This page provides general health information based on published guidelines and resources and is not a substitute for personalised medical advice. If you are experiencing a medical emergency, call 999 immediately.
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Your care team can help you understand what this means for you specifically, and can point you to the right local resources.
Talk to your care team →