5 Signs You Should See a Doctor About Shortness of Breath

Shortness of breath (dyspnoea) can happen after intense exercise or during times of stress — but when it occurs unexpectedly, worsens, or doesn’t resolve with rest, it may signal a serious health problem.
Here are five warning signs you shouldn’t ignore:

Sudden onset without clear cause
If you’re resting or doing light activity and suddenly feel breathless, it could point to a heart, lung, or blood clot emergency.
Worsening over days or weeks
Gradual decline in your ability to breathe comfortably may be a sign of asthma, COPD, heart failure, or anaemia.
Associated chest pain or tightness
Pain, heaviness, or pressure in the chest alongside breathlessness warrants urgent assessment to rule out heart attack or pulmonary embolism.
Blue lips or fingertips
A bluish tint suggests low oxygen levels in the blood — a potential medical emergency.
Interference with daily activities
If climbing stairs, walking short distances, or speaking in full sentences becomes difficult, it’s time to get checked.

Bottom line: Seek prompt medical advice for any unexplained, persistent, or severe shortness of breath. Call emergency services immediately if symptoms come on suddenly or with chest pain, dizziness, or fainting.