Can I donate blood if I have asthma?
What this means
- Controlled asthma is not a barrier.
- Avoid donating during a flare or if you are short of breath.
- Inhalers and common asthma medications are fine.
What to do next
Book on a day your breathing is good and you feel well.
When to call the center: Call if you have had a recent severe flare or hospital visit.
Why this rule exists
Centers want you breathing comfortably so the donation goes smoothly.
This is general educational guidance, not a final eligibility decision. Donation centers make final eligibility decisions during confidential screening. Rules may vary by center, donation type, location, and current policy.
Find a place to donate
Search by city, ZIP, state, or center name, or use your location to see the closest centers.
Related questions
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Read the full pledgeSources and review
The guidance on this page reflects published criteria from these organizations. Eligibility and procedures vary by center and country, so confirm specifics with your donation center.
- American Red Cross
- AABB (Association for the Advancement of Blood & Biotherapies)
- U.S. Food and Drug Administration, Blood Donation
- Canadian Blood Services
- Last reviewed:
- Next review due:
- Reviewed by:
- Reviewed against American Red Cross, AABB, and U.S. FDA donor guidance
- Confidence:
- High confidence