Bone marrow aspiration is the full name of bone marrow aspiration biopsy, and hospitalization is usually not required for bone marrow aspiration. Bone marrow aspiration is a diagnostic technique that collects bone marrow fluid and performs blood cell morphology and hematopoietic stem cell culture on the fluid to assist in clinical diagnosis, observation of therapeutic effects, and determination of prognosis. The operation of bone marrow aspiration is relatively safe, and there are few adverse reactions, so it can be treated without hospitalization, but it is necessary to carry out observation for a period of time after the completion of the operation to make sure that the patient has no discomfort before leaving. If the patient’s condition or reaction after the bone piercing operation is relatively severe, hospitalization is required. If the patient is suspected of hematologic diseases requiring bone puncture, early standardized treatment is recommended to reduce the adverse effects of the disease.