Do Needle Biopsies Cause Cancer To Spread?

Needle biopsies do not cause cancer to metastasize or spread.

Puncture is a very common biopsy method in the department of oncology. It is mainly a diagnosis and treatment technique that the puncture needle is inserted into the body cavity to extract secretions for testing, and gas or contrast agent is injected into the body cavity for contrast examination, or drugs are injected into the body cavity. In fact, the purpose of puncture is to draw blood for testing, blood transfusion, infusion and catheter placement for angiography.

Tumor biopsy is a necessary step in the further diagnosis of cancer, mainly to further determine whether the tumor is benign or malignant. In real life, when many people talk about puncture surgery, not only the patient will feel afraid, but also their family members are very worried. Many people believe that puncture will lead to tumor metastasis. In fact, this is nonsense, because puncturing does not cause cancer to metastasize, for several reasons:

First, the needle for tumor puncture is usually small (generally 0.4 ~ 0.7 mm), and the trauma to normal tissue and tumor is also very small.

The second reason is that the puncture site is usually far away from larger blood vessels, so it is impossible for cancer cells to get into the blood.

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