Why it matters
Blood can't be made, only given
O− stock
18%
Lives per donation
3
Go to thalassaemia care
34%
Quick check
1 / 4 · 4 questions · 30 seconds
Are you between 18 and 65?
Learn
Aged 18–65
Weigh 50 kg or more
Feel well today, slept and ate
90 days since your last donation
The doctor at the centre makes the final call.
Questions
A short pinch at the start. The donation itself takes 8–10 minutes.
About 450 ml — under 10% of your volume. Your body restores it within weeks.
Sleep well, eat a light meal, drink water and skip alcohol for 24 hours.
That's the interval between whole-blood donations — enough to rebuild iron stores.