Doctors stumbled upon a type rarer than “golden blood”—and suspect more patients carry the bizarre genetic anomaly.

In a routine blood test that turned extraordinary, French scientists have identified the world’s newest and rarest blood group. The sole known carrier is a woman from Guadeloupe whose blood is so ...

A blood type found in just three people is shaking up what we thought we knew about human biology. Called B(A), it doesn’t ...

An investigation into why blood doesn't always behave as doctors expect has revealed a super-rare mutation in an extremely uncommon variation of blood. Testing more than 544,000 blood samples in a ...

A strange medical finding has emerged from Thailand, and it’s already catching attention in the global science community.

Two-year-old Zainab Mughal has neuroblastoma, an aggressive form of cancer. In December, we told you about the international search to find some of the rarest blood in the world to help save her life.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. This voice experience is generated by AI. Learn more. This ...

A single one-time gene therapy could free patients with α-thalassemia, a rare and debilitating blood disorder, from the burden of lifelong transfusions. A single one-time gene therapy could free ...