What are the main symptoms of skin cancer?

Enlarging lumps: Skin cancers usually are relatively asymptomatic until they get large. They are more common in sun exposed/damaged areas. Look for lesions on your skin which are progressively enlarging and/or changing. Skin cancers can sometimes, itch, bleed, ulcerate or cause pain. If in doubt, have a md look at the areas in question.

Many symptoms: Depends on the type of skin cancer: basal cell, squamous cell, melanoma, dermatofibrisarcoma, etc. They may look like a pimple, mole, ulcer, scar, nodule, plaque, rash, pigmented, colored, etc. Appearance as well as behavior and history and location are important pieces of information that contribute to the assessment. They may be asymptomatic, bleed, itch, peel, grow, drain, invade, spread, ...

ABCD's: Remember your abcd's when thinking of melanoma. Look for moles with asymmetry boarders that are irregular color differences within the same mole diameter greater than 6mm also any new mole or old that starts to itch, bleed or ulcerate should be of concern. Another rule is the ugly duckling rule. Which refers to a mole that looks distantly different from the others on your body.