Can teenagers under 18 donate blood?
Yes. In most states you can donate at 17, and in some states at 16 with parental consent. Younger donors also have to meet height, weight and hemoglobin requirements.
Teenagers are a big part of the US blood supply, because many high schools host blood drives.
Age rules
- In most states, the minimum age is 17
- Some states allow 16 with a signed parental consent form
- Rules for 16 and 17 year olds vary by state and blood center
Extra requirements for young donors
Teen donors have a smaller blood volume, so blood centers may require:
- A minimum weight of 110 lbs
- Height and weight within a set chart
- A higher hemoglobin level than adults in some cases
How parental consent works
Each state and center has its own form. Often a parent must sign a consent form, either at the site or in advance.
Why age limits exist
The body is still developing, and a smaller person has less blood to spare. The rules help make sure the donation is safe.
Why it matters
Many people become lifelong donors after a first donation in high school. Starting young can mean decades of donations.
This information is general and does not replace advice from a health professional. Your eligibility is always decided at the donor screening on the day of donation. Rules change, so confirm with the American Red Cross or the blood center where you plan to donate.