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Why do I get short of breath climbing stairs?

Answered by the AskDoc Medical Team · Medically reviewed under our Medical Director, MBBS

Stairs demand a sudden jump in effort, so even reasonably healthy people breathe hard at the top. Deconditioning is the most common explanation, and it improves with steady walking.

It becomes a medical question when the same flight gets harder over weeks, when you must stop partway, or when breathlessness comes with chest tightness, cough, wheeze or swollen ankles. Anemia, asthma, heart and lung conditions all present exactly this way.

A simple test: note how many stairs you manage today, then recheck in a month. A worsening trend is worth a doctor visit with that log in hand.

If you are buying a pulse oximeter

A fingertip oximeter under $30 is accurate enough for home use. Warm hands, sit still, and read the number after 30 seconds, not the first flicker.

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