Chen Po-ming points out that although there is no danger in extracting marrow, the operation requires a general anaesthetic, which does carry some intrinsic risk, so that bone marrow donation is never completely safe. It is very rare for an anaesthetic to cause problems, however, so according to Chen Po-ming there is no need for anyone to be deterred by that possibility.
陳博明指出，骨髓抽取雖沒有危險性，但必須在全身麻醉的情況下進行手術，由於麻醉本身具有一些危險性，因此，捐髓不能說是「絕對」安全。