Certain blood types are in greater demand (and shorter supply) than others at different periods. However, donors of all blood types are needed and welcomed!
A “unit” of blood is collected during a donation. This is equivalent to about one pint of blood.
Most people say they only feel a slight pinch of the needle at the start of the donation. (Many people also report feeling great after donating because they know they've helped patients in need!)
Eat a nutritious and filling meal the day of your appointment (and get plenty of calcium).
Make sure you are well-hydrated. Try to drink six to eight 8-ounce glasses of water the day before and the day of your donation appointment.
Bring a valid photo ID with you to the appointment.
What should I do after my blood donation appointment?
We encourage donors to drink plenty of good fluids (water and juices) after donating. This will help keep your body well-hydrated.
Eat well the day of your donation and don’t hesitate to snack if you feel hungry.
As long as you are healthy and continue to meet the eligibility criteria, you can safely donate every 56 days.
For over a century, a leader in patient care, medical education and research, with expertise in virtually every specialty of medicine and surgery.
Connect with us.