About Canadian Blood Services

It can take up to 5 donors a week to help someone with cancer, up to 5 donors to save someone who needs cardiovascular surgery, and up to 50 donors to help someone in a car accident. Together, we have the power to save lives

Every minute of every day, someone in Canada needs blood.

O-negative donors

  • While there is a continuous need for all blood types, there is always a greater need for blood donors with O-negative blood.
  • When seconds count, someone's life is on the line, and there's no time to check blood type, hospital patients receive O negative blood.
  • As the universal donor, O-negative blood is always in need. O negative is the only blood type that is compatible with all others and is used in the most critical situations: for neonates, patients with compromised immune systems, and for trauma victims.

For information or to book your appointment, please call 1-888-2DONATE