What Is Invasive Melanoma?

By Staff WriterLast Updated Apr 10, 2020 7:56:31 AM ET

Invasive melanoma refers to melanoma cancer that has penetrated deeper into the skin and may have even spread to other parts of the body, explains the Skin Cancer Foundation. There are four basic categories of melanomas. Three of them begin on the top layers of the skin and only become invasive after a long period of time. The fourth category of melanoma is invasive from the beginning.