The results of the puncture of the breast, usually about 1 week after surgery, are mainly paraffin or immunohistochemical pathology, which requires the application of medical alcohol or formalin solution to fix the specimen. For occupying lesions in the breast, in order to further clarify the benignity or malignancy of the lesion, puncture can be performed with a fine percutaneous needle under local anesthesia, which is less invasive. Care should also be taken during the procedure to avoid side injuries, including chest wall injury or pleural injury, and some patients are also prone to hemopneumothorax. If you choose the direct cryopathological examination, the results can be available within 30 minutes after the operation, which can roughly distinguish the benignity and malignancy of the lesion, but cannot further clarify the biological typing, molecular typing and so on.