Medically reviewed by Gagandeep Brar, MD Key Takeaways Bone marrow fills the cavities in your bones and produces blood ...

A bone marrow biopsy is a medical procedure used to collect a small sample of bone marrow, which is the soft, spongy tissue inside your bones where blood cells are made. This test helps a physician ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...