melanoma is a form of skin cancer caused from over exposure to u.v. radiation

Asymmetry: The mole has an irregular shape.
Border: The edge is not smooth, but irregular or notched.
Color: The mole has uneven shading or dark spots.
Diameter: The spot is larger than the size of a pencil eraser.
Evolving or Elevation: The spot is changing in size, shape or texture.

there are many signs of a melanoma but a lab must test to be sure

chemotherapy is required

he 5-year survival is 92%. ... However, for people with thicker melanoma, the 5-year survival may be as low as 80%.

sunscreen and a wide Brim hat along with limiting sun exposure.