In fact, it is more appropriate to call it “frozen” section, which means that the patient is lying on the operating table and a part of the diseased tissue is cut off, and the pathologist makes a quick pathological diagnosis through the “frozen” section to decide the further surgical plan. “If the lesion is benign, local excision is sufficient, while if it is malignant, enlarged excision and lymph node dissection should be done. If the tumor is benign, local excision is sufficient; if it is malignant, enlarged resection and lymph node dissection are required. If the patient does not undergo “frozen section”, he has to wait for the pathology report after several days. For this reason, hospitals that are in a position to do so recommend the “frozen” section technique. The biggest advantage of “frozen” section is fast (20-30 minutes to report), but there are certain limitations, “frozen” section is far less exquisite and clear than paraffin section, less specimen, not suitable for more sections, short production time, coupled with some pathology The “junctional lesions” and “gray lesions” are almost difficult to diagnose clearly by freezing, allowing delayed diagnosis. Some patients have been diagnosed as malignant tumor before surgery, but intraoperative “frozen” sections are needed to remove the tumor more thoroughly until no tumor remains in the cut margin. The “frozen” section pathological diagnosis is a comprehensive test of the pathologist’s knowledge, experience, psychological quality and emergency ability, which can neither be conservative and indecisive, nor risky diagnosis regardless of the consequences. Imagine, a young man suffering from thigh tumor, intraoperative “frozen” section diagnosis of malignant tumor and amputation, a few days after the paraffin pathology and reported as benign, what “evil” will be produced? I’m afraid it’s not just “regret” and “helplessness”. This also makes people appreciate the heavy burden on the shoulders of every pathologist. With this, we hope that leaders at all levels will support and pay more attention to pathology, and the public will care more about and understand pathology.