Difference between bone marrow biopsy needle and bone marrow puncture

Bone marrow biopsy:

Bone marrow biopsy, for short, is a small cylindrical piece of bone marrow about 0.5 to 1 centimeter long taken with a special needle for pathological examination. The operation method is exactly the same as that of bone marrow biopsy. The material removed keeps the complete bone marrow tissue structure, which can make up for the deficiency of bone marrow puncture.

Bone marrow aspiration:

A bone piercing is a small amount of bone marrow taken for examination. Bone marrow is filled in the bone marrow cavity and cancellous mesh of bone, and there are two kinds of bone marrow, dividend bone marrow and yellow bone marrow. Red bone marrow has hematopoietic function, and yellow bone marrow has a lot of adipose tissue. With age, the red bone marrow in the medullary cavity was gradually replaced by yellow bone marrow. Red bone marrow is retained in the cancellous area of the spinal canal, sternum, ribs, clavicle, scapula, iliac crest, skull, femur and upper humerus. It is the main hematopoietic organ of the human body. Abnormal quality and quantity of blood cells is an important pathological change of hematologic diseases.