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  1. Rarest blood type: Chart and compatibility - Medical News Today

    Feb 26, 2025 · The rarest blood type is called Rhnull. Only around 1 in every 6 million people have Rhnull blood. Learn about other blood types and their compatibilities in this article.

  2. What Are the 3 Rarest Blood Types? - MedicineNet

    Only very rare blood group types cannot be determined by the EldonCard. The blood grouping test needs a conventional type of testing by professions only if blood clots are seen in the fourth circle …

  3. 8 Rarest Blood Types: Which Blood Group Is Least Common?

    Feb 4, 2026 · The rarest blood type is Rhnull, with fewer than 50 known cases worldwide. The next rarest are AB-negative, B-negative, AB-positive, A-negative, O-negative, B-positive, A-positive, and …

  4. The magic of the world's rarest blood type - BBC

    Nov 12, 2025 · People with rare blood types struggle to find donated blood that will match their own. One of the rarest – the Rh null blood type – is found in just 50 known people in the world. Should …

  5. Discover Golden Blood: The Rarest Blood Type - Cleveland Clinic …

    Jul 24, 2025 · Fewer than 50 people have ever been found to have golden blood, a genetic change that’s also called Rh null blood. If you’ve ever spent much time looking into blood types, you were …

  6. What Makes Rh Null the Rarest Blood Type? - Verywell Health

    Oct 23, 2025 · The rarest blood type is called Rh null, and fewer than 100 people in the world have it. People with Rh null blood do not have any Rh antigens and can face health issues like fragile red …

  7. The Top 10 ‘RareBlood Types - World Health Star

    Jun 22, 2025 · Rh-null is considered the rarest blood type in the world. It lacks all 61 possible Rh antigens, making it extremely valuable for transfusions but incredibly hard to find.

  8. Rarest Blood Type: Chart and Compatibility - Husaini Blood Bank

    Apr 28, 2025 · Human blood types vary across eight common ABO/Rh groups, but a few are exceptionally rare and clinically critical. The rarest blood type is Rh null, often called “golden blood,” …

  9. The World's Rarest Blood Type Is Rhnull

    Feb 4, 2025 · In that context, AB negative is absolutely a rare blood type. But is it the rarest? No — not by a longshot. That title goes to Rhnull, a blood group so extraordinarily rare that it has only been …

  10. Why 'Golden Blood' Is Considered The Rarest Blood Type

    Aug 23, 2025 · When it comes to blood types, though, Rhnull is one of the rarest and hardest to find, which is why it's referred to as "golden blood." To understand why it's so rare, though, it's helpful to …