Guidelines on eligibility to give blood change from time to time. The most up-to-date eligibility information can be obtained by contacting the American Red Cross blood center nearest you.
- Q How many white blood cells are in a normal adult body?
- Q Can I donate blood if I have a chronic illness?
- Q How long can cord blood be stored?
- Q Why can’t men who have sex with men donate blood?
- Q How does blood pump through the heart?
- Q How does blood travel throughout the human body?