Basic Eligibility Criteria
- Generally aged 17/18-65-70 (specific limits vary by country and can extend for repeat donors)
- Weigh at least 50kg (110lbs) typically
- Generally in good health, no active infections
- Adequate haemoglobin level (checked before each donation)
- Various temporary or permanent deferrals apply (recent travel to certain areas, certain medications, recent tattoos/piercings, some medical conditions)
What Happens During Donation
| Step | Description |
|---|---|
| Registration and health check | Brief questionnaire, haemoglobin finger-prick test |
| Donation | Usually 8-10 minutes, about 470ml of blood collected |
| Rest and refreshment | 10-15 minutes with a snack/drink before leaving |
| Total appointment time | Approximately 45-60 minutes |
Health Considerations
Blood donation is very safe for eligible donors, with mild, temporary effects (occasional light-headedness, bruising at the needle site) being most common. People with haemochromatosis (iron overload) may donate therapeutically, which can benefit both the donor and blood supply.Hydrate and Eat Before DonatingEating a good meal and drinking plenty of fluids in the hours before donation reduces the risk of feeling light-headed or fainting during or after the donation process.
Can I donate blood if I'm on medication?
Many common medications don't prevent donation, but some do require a waiting period or exclude donation — check specific guidance for your medication with your blood donation service.
How often can I donate blood?
This varies by country and donation type, but whole blood donation is typically allowed every 12-16 weeks for men and slightly less frequently for women, to allow adequate iron store recovery.
Will donating blood make me anaemic?
For eligible donors with normal haemoglobin, occasional donation at recommended intervals doesn't typically cause anaemia, as the body replaces the donated blood volume and cells over the following weeks.
Medical Disclaimer: This page is for general education only and does not replace professional medical advice. Always consult a qualified healthcare provider.