How Often Can You Donate Blood?
There is no single worldwide donation interval that applies to every donor. Frequency depends on the country, donation type, donor health and the rules used by the blood service.
Medical information notice: This article provides general educational information and does not determine whether you are medically eligible to donate blood. Final donor eligibility is assessed by the blood centre or qualified medical staff.
Follow local donor-selection rules
WHO states that donor-selection criteria and donation frequency vary from country to country. Your local blood service can tell you when you are eligible to donate again.
Why you should not use a fixed online number
Your eligibility can change with your health, recent illness, medicines, pregnancy-related circumstances, travel or other factors considered during donor selection. A general interval found online may therefore be inappropriate for a particular donor.
What to do before your next donation
Check with the blood centre where you plan to donate. The centre can assess your current health and confirm whether you are eligible to donate that day.
Sources
Help build your local donor network
If you are willing to donate, you can register with DonorNearby. Registration does not guarantee availability for a future request.