Vulvar cancer is cancer that starts as a growth of cells on the vulva. The vulva is the area of skin that surrounds the urethra and vagina. It includes the clitoris and labia. Vulvar cancer commonly forms as a lump or sore on the vulva that often causes itching. Though it can happen at any age, vulvar cancer is usually diagnosed in older adults. Vulvar cancer treatment often starts with surgery to remove the cancer and a small amount of surrounding healthy tissue. Sometimes vulvar cancer surgery requires removing the entire vulva. The earlier vulvar cancer is diagnosed, the less likely an extensive surgery is needed for treatment.