Puncture Needle Bone Marrow Can Not Come Out Many Times How To Return A Responsibility?

The reasons for the failure of bone marrow aspiration may include myelofibrosis, bone marrow necrosis, amyloidosis, granuloma and multiple myeloma. There is no clear reason for "dry extraction", and it is necessary to investigate whether it is caused by low myelodysplastic hyperplasia, hyperplasia of bone marrow fibrous tissue or "compacting" caused by hyperactive hyperplasia of bone cavity. At this time, bone marrow biopsy should be performed.