Does a Biopsy Spread Cancer

A common concern deserves a clear answer

Some patients hesitate when a biopsy is advised because they have heard that touching a tumour makes it spread. The National Cancer Institute explains that the chance of biopsy or surgery causing cancer to spread is extremely low when appropriate procedures are followed. It also states that exposure to air does not make cancer grow faster. [1]

This is reassuring information, but no procedure should be described as having no possible risk. The type, site and technique of biopsy should be selected by the treating team.

Why a biopsy is recommended

A biopsy provides cells or tissue for a pathologist to examine. It can investigate cancer and many non-cancerous diseases. The result helps replace uncertainty with information that can guide the next decision. [2]

Ask what the clinician is trying to establish. A useful explanation connects the finding in your mouth with the proposed test and the decisions that may follow its result.

Discuss the procedure rather than postponing it silently

Tell the clinician exactly what worries you. Ask how the tissue will be collected, what risks are relevant to the site and what recovery instructions you will receive.

If you want another opinion before proceeding, ask how to arrange it without losing track of the lesion or the recommended timeline. Keep copies of the referral and any imaging.

Be careful with stories about timing

“The cancer was found after the biopsy” does not mean the biopsy caused it. Often the biopsy is the investigation that identifies the disease. Understanding what was known before and what was learned afterwards prevents a misleading conclusion.

The most useful outcome of the conversation is an informed decision and a clear plan. Before leaving, confirm whether you have agreed to the procedure, requested further discussion or chosen another assessment, and know who will arrange the next step.

References

[1] National Cancer Institute. Common Cancer Myths and Misconceptions. Read source

[2] US National Library of Medicine, MedlinePlus. Biopsy. Read source

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