How effective is surgical excision for moles?

During excision, the clinician removes the mole and a small amount of surrounding skin, then closes the wound. The entire specimen can be sent for histopathology, which helps determine whether the mole is benign or contains atypical or cancerous cells. This makes excision useful when a mole is changing, symptomatic, difficult to assess, or repeatedly irritated by clothing.

The result also depends on the mole's depth, size and position. A visible scar is expected, and pigment or texture may change as it matures. Removing one mole does not remove other moles or prevent new ones. Learn about [Surgical Excision](/treatments/surgical-dermatology/excisional-surgery/).

Before the procedure, describe changes in colour, border, size, bleeding or sensation, and mention medicines that affect clotting or any tendency to form raised scars. Afterward, keep the site clean and covered as directed, avoid picking the scab, and limit movement that pulls the wound. Return for stitch removal and ask for the laboratory result rather than assuming the appearance gives the answer.

Seek advice if bleeding continues after pressure, the wound edges separate, pain becomes stronger, or redness spreads outward. Pus, fever, increasing warmth or swelling can signal infection. Arrange prompt assessment for another mole that changes quickly, develops several colours, bleeds without a clear injury or forms a persistent crust.

Ask: Why do you recommend excision rather than monitoring or another technique? Will the whole mole be removed and examined? Where will the scar lie, and how should I care for it? When will the result be ready? If the report is atypical, will more skin need to be removed?