Dr George Lee returns to discuss the latest medical news. Expect deep insights delivered with generous humour. Our bone marrow plays an important role in producing healthy blood cells. When a type of cancer called multiple myeloma develops in the bone marrow, it can have a debilitating effect on a person’s bones, kidneys, blood, and their ability to ward off infections. Senior consultant haematologist Prof Dr Gan Gin Gin explains more about how multiple myeloma develops, and the treatment advances that have improved outcomes for patients.