- Nodular – most common smooth, waxy, pale or pearly, pimple, sometimes depressed or crusted in center, can bleed easy
- Superficial – red scaly or crusted patch often on back, shoulders, often confused with eczema or psoriasis
- Sclerosing- usually shiny, hard depressed patch with irregular borders, has root like extensions (making it more difficult to treat)
- Pigmented- similar to nodular form, but is brown or black in color, can be confused with melanoma
- Basosquamous – basal cell skin cancer and squamous cell skin cancer co-exist together, some believe it to be a more aggressive form