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What to do if…
you develop new chest pain that gets worse when you breathe in

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy USA guide

Short answer

New chest pain that gets worse when you breathe in needs prompt medical assessment. Call 911 now if the pain is sudden or severe, if unexplained pain lasts more than a few minutes, or if you have trouble breathing, fainting, coughing up blood, confusion, rapidly worsening symptoms, lips or fingernails that look blue or gray, or chest pressure or pain spreading to an arm, your back, neck, jaw, or upper belly. If none of those apply, have someone take you to an Emergency Department now rather than waiting to see whether it settles.

Do not do these things

  • Do not exercise, climb stairs, or try to walk the pain off.
  • Do not drive yourself if the pain is severe, you are short of breath, you feel lightheaded, or you might faint. Call 911.
  • Do not use a smartwatch or pulse oximeter reading as a reason to delay care.
  • Do not assume the pain is only anxiety, indigestion, or a pulled muscle.
  • Do not take someone else’s medication. Do not take aspirin unless a healthcare professional or 911 dispatcher tells you to do so.

What to do now

  1. Stop activity. Rest in a comfortable position that lets you breathe as easily as possible.
  2. Call 911 now if any of these apply:
    • the pain is sudden or severe, unexplained pain lasts more than a few minutes, or symptoms are rapidly worsening
    • you have shortness of breath or significant difficulty breathing
    • you feel faint, you have fainted, you are confused, or your lips or fingernails look blue or gray
    • you cough up blood
    • you have chest pressure, tightness, or heaviness, or pain spreading to an arm, your back, neck, jaw, or upper belly
    • one leg is newly swollen, painful, warm, red, or discolored
  3. If none of those apply, have someone take you to an Emergency Department now. Do not wait for a routine appointment or wait to see whether the pain settles.
  4. Get there safely. Ask someone else to drive you and stay with you. Call 911 instead if symptoms worsen, you become short of breath or lightheaded, or you cannot get to care safely.
  5. Give a brief symptom summary to the 911 dispatcher or triage clinician. Include when the pain started, where it is, what it feels like, whether a deep breath or cough makes it worse, and any other symptoms. Mention recent long travel, reduced movement, surgery, pregnancy or the postpartum period, estrogen-containing birth control, hormone replacement therapy, cancer treatment, or a previous blood clot if any apply.
  6. Bring essentials only if this does not delay care. A medication list, allergy details, and identification can help. Do not delay calling 911 or leaving for care to gather items.

What can wait

  • You do not need to decide what condition is causing the pain.
  • You do not need to repeat home measurements to prove that the pain is serious.
  • You do not need to research symptoms or update other people before arranging care.

Important reassurance

There are several possible causes of breathing-related chest pain. Getting assessed promptly is a sensible protective step, not an overreaction.

Scope note

These are first steps only. Later decisions may need help from a healthcare professional after assessment.

Important note

This is general information, not medical, diagnostic, therapeutic, or other professional advice. If you think this may be an emergency, call 911.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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