Do you need a skin biopsy after skin cancer screening?

Screening is a visual assessment of your skin, often including dermoscopy, which magnifies surface details. Many spots are clearly benign and can be observed or photographed for comparison. A biopsy removes a small sample, or sometimes the whole lesion, so a laboratory can examine its cells. The recommendation depends on the spot’s features, its change over time, your skin history, and whether the clinician can make a reliable clinical diagnosis. A biopsy recommendation is a request for clarification, not a diagnosis of cancer.

Ask which lesion needs attention, why it is considered atypical, and whether the plan is sampling, complete removal, or short-term monitoring. Follow the preparation instructions, including whether medicines that affect bleeding need discussion. Do not pick, scratch, or apply irritants to the area before the appointment. Bring details about earlier photographs, previous skin cancers, family history, and any recent change in size, shape, colour, or sensation. Learn more about [Skin Cancer Screening](/treatments/diagnostics-and-testing/skin-cancer-screening/).

Contact the dermatology service promptly if the spot is bleeding without a clear injury, repeatedly crusting, rapidly changing, becoming painful, or developing a new irregular border. Seek urgent medical help for heavy bleeding that does not settle with firm pressure, spreading redness with fever, or severe pain after a biopsy. These symptoms call for timely assessment regardless of whether a biopsy has already been advised.

Ask: What feature makes this spot worth sampling? Would monitoring with a documented photograph be reasonable? What type of biopsy do you recommend, and how will the wound be cared for? When and how will the result be explained? What changes should make me contact you sooner?