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.

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