Ready to Give Life? Start Here.
The ABCs of Eligibility
For more eligibility criteria listed alphabetically, click here.
Thanks for taking the first step to Give Life!
Not sure about how the whole donation process works? Check it out on this page.
At the time of your donation, you will be asked these questions again as well as a number of other questions that are included as part of the donor questionnaire.
For First Time Donors:
To donate blood for the first time you must be:
- In good general heath, feeling well and able to perform your normal activities
- At least 17 years old
- Meet our height and weight requirements if you are between 17 and 23 years old. Use our chart below to determine if you are ready to donate.
For Returning Donors:
Recent Changes to Donation Criteria
First, check out this page to see if there is anything new that might be for you!.
How often can I donate?
It depends on the type of donation you’re making:
- Every 56 days for whole blood for males, every 84 days for females
- Every seven days for plasma
- Every 14 days for platelets
On the day of your donation, it is important that you have eaten and had adequate sleep.
Remember: if you do not meet the requirements today, there are lots of other ways to get involved with Canadian Blood Services. Plus, you can always check in with us again to see if your eligibility has changed.
Still need a bit more info? Sign up to learn more about blood donation.
Can I donate to Canadian Blood Services if I’m from Quebec?
Residents of Quebec can donate at any Canadian Blood Services clinic, although we do not operate clinics within the province. If you make a blood donation to Héma-Québec within Quebec, your donation will be acknowledged as part of your Canadian Blood Services donation count. Learn more about Héma-Québec.