If now you still think that you can detect breast tumor early by touching your breast frequently, your idea is outdated. Because probably when you feel your breast lump often means that breast cancer is not early stage anymore, and the tumor cells may have infiltrated to the surrounding area, or even metastasized. How to detect the untouchable breast tumor early and kill it in the cradle, and improve the detection rate of early tumor and survival rate of breast tumor in Chinese women are what the majority of female patients are eager to know. Mammography, ultrasound and MRI-guided breast puncture biopsy are good methods commonly used abroad to diagnose early breast cancer. This is also the advanced aspect of the higher diagnosis rate of early breast cancer in foreign countries. However, the development of these puncture techniques in China is not optimistic due to the national conditions. In fact, with the continuous development and popularization of ultrasound-guided interventional techniques, puncture biopsy has become a necessary tool to identify early breast cancer and can guide clinical surgery and treatment. Compared with the previous method of needle aspiration, ultrasound-guided coarse needle biopsy has obvious advantages: (1) accurate positioning, high-frequency ultrasound probe can clearly show the deep breast masses that are difficult to reach by hand, and the whole process of needle entry and extraction can be dynamically observed, which improves the success rate of puncture; and can guide the selection and change of the puncture site. (2) high success rate of sampling, the use of automatic biopsy gun to avoid instability in the puncture process, the tissue specimen taken is more complete than the original fine needle puncture, which is conducive to pathological examination and typing; (3) safe and minimally invasive, compared with surgical biopsy, coarse needle biopsy puncture will not leave unsightly scars on the surface skin of the breast; compared with mammography Compared with mammography biopsy, there is no need to squeeze the breast and no radiation hazard. Accurate ultrasound guidance is a prerequisite for safety, and the direction and depth of puncture are strictly controlled during the operation, parallel to the chest wall as much as possible, to avoid puncturing the pleura and complications such as pneumothorax. After puncture, the puncture wound was wrapped with gauze and pressure was applied for 10 min to prevent bleeding. No bathing is allowed the night after the puncture, and the activity of the arm on the puncture side is reduced. Normal life is possible the next day. Ultrasonography has become one of the main tools for breast lump detection and diagnosis, especially since the application of color Doppler flow imaging technology, which provides valuable information for the determination of benign and malignant breast lumps. However, just like any examination equipment has its advantages and disadvantages. Ultrasound examination also has some blind spots, especially when there is sonographic crossover between benign and malignant breast lumps, or when some of the early breast cancer lumps are small and cannot be judged on imaging, making puncture localization relatively difficult. This requires regular ultrasound follow-up or other related examinations. There are many advantages of ultrasound examination, especially compared with mammography and MRI, ultrasound examination has no radiation, and it is inexpensive, does not require injection of potion, and can be repeated several times and regular follow-up. Are you still worried about the latent breast tumor in your body? Do you have a family history of breast tumor but you are still checking your breast by hand? Come to the hospital for an ultrasound. Even if you find a problem, you don’t have to worry about it. A puncture biopsy will tell you the nature of the lump and help you get out of the darkness.