Blood Network

Discover life-saving facts, compatibility guides, and join our blockchain-powered blood donation ecosystem.

Donate Now

Blood Facts

Blood Volume

The average adult has about 5 liters of blood. Your body can replace lost blood plasma in 24-48 hours.

Donation Speed

A whole blood donation takes just 8-10 minutes. Your body replaces the donated red cells in 4-6 weeks.

Rare Types

Only 7% of people have O-negative blood (universal donor). AB-positive is the rarest at 3% of the population.

Lifespan

Red blood cells live for about 120 days. Platelets last just 5-9 days, requiring constant donations.

Components

One donation can be separated into red cells, plasma, and platelets to save up to 3 lives.

Global Need

Every 2 seconds someone needs blood. Less than 10% of eligible donors give annually.

Type Compatibility

Know who you can donate to or receive from in emergencies.

O-

  • Donates to: All
  • Receives: O-

O+

  • Donates to: O+, A+, B+, AB+
  • Receives: O+, O-

A-

  • Donates to: A+, A-, AB+, AB-
  • Receives: A-, O-

A+

  • Donates to: A+, AB+
  • Receives: A+, A-, O+, O-

B-

  • Donates to: B+, B-, AB+, AB-
  • Receives: B-, O-

B+

  • Donates to: B+, AB+
  • Receives: B+, B-, O+, O-

AB-

  • Donates to: AB+, AB-
  • Receives: All negatives

AB+

  • Donates to: AB+
  • Receives: All types