There are two different types of stem cell transplants:

To understand these treatments, it helps to know about bone marrow and stem cells.

Bone marrow is part of our immune system which protects us from infection and disease. It is found inside our bones, mainly in the hip bone and the breast bone. The bone marrow is where stem cells are made.

Stem cells are blood cells at the earliest stage of development. All our blood cells develop from stem cells in the bone marrow. Stem cells stay inside the bone marrow and when they are fully developed they go into the bloodstream.

Blood cells do not live long. The bone marrow normally makes millions of new blood cells every day to replace blood cells as they are needed.

There are three main types of blood cells:

There are two main types of white blood cell. These are called neutrophils and lymphocytes. Neutrophils are the most common. You will hear your doctor or nurse talk about your neutrophil count during your treatment.

Read more:
What are stem cells and bone marrow? - Macmillan Cancer ...

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