It usually manifests as a small, red, painful bump. It can manifest anywhere. Usually it appears on the legs, head ( lips, mouth, ears, scalp hair ) and the back side of hands and arms.

Often the skin looks like it has a sum damage, shows wrinkles, changes in color as well as loss of elasticity.

The tumor is initially painless, but can produce pain if extracted, and never heals.
It can appear on normal skin, on a burn or scar or on a point of chronic inflammation.

Squamous cell cancer is more aggressive than basic cell carcinoma. It can metastasize in other areas , such as the lymph nodes or internal organs.

Squamous cell carcinoma can arise from precancerous skin tumors, such as actinic keratosis and it is bset to be treated as such.