How exactly does skin cancer kill?

Use sunscreen ..so vital for ANY skin tone. The sun is toxic and cancer can begin when enough free radicals form within the skin layers 🙁(Toxins) ...it kills by then spreading to organs ...IF u don't spot the dark mole like spots that begin as cancer

Melanoma, if left untreated, can spread to other various parts of your body and will be harder to eradicate.

It does not remain on the surface... it only starts on the skin.

If left untreated it grows and can spread elsewhere, just like any cancer.

Your body kinda flips out and shuts down :v