As to the question of whether breast aspiration examination will lead to the spread of cancer, many experts at home and abroad have confirmed after 10-23 years of follow-up observation that needle aspiration cytology examination before breast cancer surgery has no adverse effect on the survival of patients and will not cause the spread of cancer cells. This is because whether cancer cells can form metastases and spread depends on the viability of the cancer cells themselves, the body’s own resistance and the condition of the tissues where the cancer cells go. Most cancer cells die soon after they are detached from the tumor tissue, and only a few survive. They must escape from the body’s immune system and find a suitable “soil” in which to grow. Needle aspiration biopsy is only a small amount of cancer cells extracted from a lump for examination, and usually does not cause the cancer cells to spread. However, once breast cancer is diagnosed after needle aspiration biopsy, breast cancer surgery or pre-operative chemotherapy should be performed as soon as possible to achieve satisfactory treatment results. It can be seen that instead of worrying about the spread of the puncture and delaying the diagnosis, patients should get early diagnosis and timely treatment after timely puncture. Some people say, then I choose the surgical biopsy intraoperative rapid section diagnosis (commonly known as freezing) is not better? Let me tell you, surgical biopsy is much more traumatic than puncture, with more bleeding and more likely to cause intraoperative spread of cancer cells, and rapid intraoperative biopsy will deprive you of preoperative chemotherapy, which is a good treatment tool to prevent cancer metastasis.