My mom is 45 years old and she has been diagnosed with skin cancer. The doctor is saying that it’s a type of basal cell carcinoma. He has also told us that it’s due to my mother’s long exposure to sun’s harmful ultra-violet radiations. It’s like a shiny bump which has spread to my mother’s arms and upper torso.I am curious to know from you what are all skin cancer types and how to differentiate them?