where is the bone marrow drawn

Bone marrow puncture is an invasive procedure for diagnosing diseases of the blood system. There are three most common puncture sites: the anterior superior iliac spine, the posterior superior iliac spine, and the sternum. The sternum is the most prosperous part of hematopoiesis, but the risk of puncturing is high, because the back is next to the heart and large blood vessels. The bone surface of the anterior superior iliac spine is relatively small, but it is relatively superficial, easy to touch, and easy to locate accurately. The posterior superior spinous surface is relatively flat, but the subcutaneous tissue of obese people is thicker, and it is easy to miss the position.

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