Guide to donating blood

Blood donation is a safe procedure in which a person gives one unit of blood (approximately 450 ml) for transfusions to patients who need it.

A single donation can help up to three patients, as blood is separated into components (red cells, plasma and platelets).

• Age between 18 and 65 (in some countries from 16 with parental consent).
• Weight over 50 kg.
• Good general health on the day of donation.
• No blood donation in the last 60–90 days.
• Valid identification document.

1. Registration and identification at the donation centre.
2. Health questionnaire about medical history and recent travel.
3. Basic check-up: blood pressure, pulse, temperature and haemoglobin.
4. Collection: 8–12 minutes with sterile single-use equipment.
5. Rest and refreshment after donation.

Anaemia, active infection, recent tattoo or piercing, recent surgery, certain medications, pregnancy or breastfeeding. The final decision is made by centre staff.

"Donating blood causes permanent weight loss." False.

"It hurts a lot." Discomfort is similar to a blood test.

"Only rare blood types are needed." Donors of all blood types are needed.

• Men: every 90 days maximum.
• Women: every 120 days maximum.

• WHO — Blood safety and availability
• Always check your national blood authority for current requirements.