There are three sites for bone marrow puncture, usually the iliac crest, the sternum, and the sphenoid process. Bone marrow puncture is generally less traumatic and causes less damage to the body, so most of them do not require special care. However, after the puncture, the puncture site generally needs to be strictly disinfected and then covered with a sterile towel to prevent contamination of the puncture site. It is also necessary to observe the puncture site for any obvious inflammation or infection. If there is significant redness, swelling, or pain at the puncture site, or if there is abnormal oozing, strict disinfection is required for the situation. If there is abnormal exudation and an increased blood count, anti-inflammatory medication should also be considered. In addition, some bone marrow punctures may be accompanied by significant bleeding, and most bleeding after such punctures can be temporarily stopped by compression.