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Starting from the aspects of postoperative recovery and prevention of long-term complications - avoid "over-reliance on weight-bearing too early" and "neglecting wound care." Although the puncture track caused by the biopsy needle is very small, it is still an open wound. If the patient does not follow the correct postoperative guidelines, it may lead to infection, delayed healing, and even affect the next imaging follow-up. Therefore, the "avoidance" during the postoperative period is equally important.

1. Avoid Lifting Heavy Objects

Avoid lifting heavy objects or performing strenuous upper limb movements within 24 hours after the surgery. After the biopsy, the fibrin emboli in the puncture tract were not yet firmly attached, and the local tissue was in the edema stage. If the patient immediately lifted heavy objects (such as shopping bags, children), performed chest-expanding exercises, or made large arm swings, it would cause relative sliding between the pectoralis major muscle and the breast tissue, pulling the still-unhealed puncture tract, which is highly likely to induce delayed hematoma or seroma. Especially for patients who use vacuum-assisted rotary cutting needles with a larger diameter (such as 8G), the cavities formed inside need a longer time to be filled. It is recommended that patients rest for at least 24 hours after the operation and avoid any actions that require using the affected arm to exert force. During the first week, avoid swimming, playing tennis, doing yoga, or any other activities involving significant movements of the upper limbs.

2. Avoid Taking a Bath

Avoid taking a bath or soaking the wound too early after the surgery. Although modern biopsy stickers have some waterproof properties, they cannot guarantee 100% sealing. Within 24 to 48 hours after the procedure, the puncture site should remain absolutely dry. The pressure from the water flow during a shower and the chemical components in the body wash may penetrate the needle hole, leading to infection.

The correct procedure is as follows: Within 48 hours after the surgery, use a damp towel to wipe the body, avoiding the puncture site. After 48 hours, if there is no redness, swelling, or exudation, you can apply a new waterproof dressing and then take a quick shower. After washing, immediately remove the dressing and disinfect it with iodophor. Do not take a bath in a tub, soak in hot springs, or go to a sauna until the needle hole completely closes (this usually takes 3-5 days).

3. Avoid Scratching or Tearing the Scabs

When the wound begins to heal, there will be a sensation of itching and a thin layer of scab will form. This is a normal inflammatory response. However, some patients cannot resist picking off the scab or rubbing it vigorously. This behavior will disrupt the crawling of the underlying epithelial cells, causing the wound to reopen and even forming a depressed scar.

What's more serious is that if there is a small amount of blood accumulation under the scab, forcibly pulling it off may cause the blood clot to fall off, leading to secondary bleeding. The correct approach is to allow the scab to fall off naturally. If the itching is unbearable, you can apply a cold towel for a gentle cold compress, or follow the doctor's advice to apply a small amount of antibiotic ointment.

4. Avoid High-Intensity Imaging Examinations

Avoid undergoing high-intensity imaging examinations again shortly after the surgery. After the biopsy, there will be a small amount of gas, hematoma, or tissue reactive edema in the puncture tract. These changes will appear as a high-echo or high-density area on ultrasound or mammography, and sometimes they may overlap with the original lesion, leading to a misjudgment of "false positive" or "lesion enlargement."

Therefore, routine postoperative follow-up imaging (such as ultrasound conducted every six months) should be performed at least one month after the biopsy. Premature examinations are not only of little significance but may also cause unnecessary anxiety. If an urgent re-examination is truly necessary, it is essential to inform the radiologist of the specific time and location of the biopsy so that they can make a differential diagnosis.

Summary

The work of the biopsy needle does not end at the moment of extraction. The real "repair project" has just begun. After the surgery, patients should avoid bearing weight too early, keep the wound dry, respect the natural healing process, and reasonably arrange the follow-up time. This is the greatest responsibility for their own health. These seemingly cumbersome precautions are precisely the key to ensuring the success of the biopsy and preventing long-term complications.