A skin biopsy removes a small piece of skin, using a punch tool, a shave or a small cut, for examination under a microscope. It is done under local anaesthesia, takes only minutes and may need a stitch. It is advised when the cause of a rash is unclear or when a mole or growth looks unusual. A skin specialist in Mumbai explains the result at a follow-up visit.

How the Procedure Can Help

A biopsy gives a clear diagnosis when looking at the skin is not enough, so treatment can be more accurate. It can detect skin cancer early, when treatment is simplest.

Risks and Considerations

Mild pain after the numbness fades, bleeding, infection and a small scar are possible. The site should be kept clean and dry as advised. Results usually take about a week, and occasionally another sample is needed.