Can I donate blood if I drank alcohol?
What this means
- You cannot donate while intoxicated.
- A drink the day before is usually fine if you feel well and are hydrated.
- Alcohol is dehydrating, so drink extra water before donating.
What to do next
Hydrate well, skip heavy drinking beforehand, and book when you feel well.
When to call the center: No need to call about occasional drinking.
Why this rule exists
You need to be sober to consent, and hydration helps the donation go 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