Stem cells are usually collected from the blood. Occasionally, they may be collected from the bone marrow.
You will usually have your stem cells collected a few days or weeks before the high-dose treatment. You can normally have them collected as a day patient. It takes 3–4 hours. You will be sitting or lying down, so it can help to wear loose, comfortable clothing. You may want to take some books, magazines or music to help pass the time.
The first part of collecting stem cells from the blood is making them move from the bone marrow into the blood. This is called mobilising the stem cells.