The puncture biopsy is usually harmless, and the puncture needle is hollow with a gap in the middle and a beveled tip, which usually does not cause bleeding during the puncture. Ultrasound or CT is usually used for guidance during puncture, which ensures that the puncture site is more accurate. During the puncture process, bleeding is more likely to occur. Since the puncture needles are relatively thin, mainly including 0.9mm, 1.22mm, and 1.6mm models, the damage that can be caused is also smaller and generally does not lead to heavy bleeding. A 1.22mm puncture needle is usually chosen for puncture, and the puncture is performed under the guidance of ultrasound or CT. The slit of the needle will contain a certain amount of removed pathological tissue, which will be examined pathologically, and the pathological result will be benign or malignant, which will determine the final treatment plan.