A laser is a very narrow focused beam of light. Laser surgery for cancer uses this beam of light to shrink or destroy cancer cells. It can also be used to remove a tumor without damaging the healthy tissue around it. This causes less pain, bleeding, infections, and scarring than other types of surgery or treatments.

Many different types of cancers with solid tumors can be treated with laser surgery. It is usually used with other types of cancer treatment, such as radiation or chemotherapy.

Laser surgery can also be used to treat some cancer symptoms and side effects, such as swelling and bleeding.