What is bone marrow?

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Accepted Answer

Bone marrow is the soft, jelly-like tissue that sits inside your bones, mainly in your hips, spine, and thigh bones. It works like a factory that makes new blood cells for your body every single day. Red marrow produces red blood cells, white blood cells, and platelets, while yellow marrow stores fat. Without healthy bone marrow, your body struggles to fight infections, carry oxygen, and heal wounds properly.