Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Skin Cancer ?
    ### Response:
    Skin cancer is usually visible. Changes in your skin, such as lumps, scabs, red spots, rough patches, or new or irregular moles should be reported to your doctor. You should also see a doctor if you have a mole, birthmark, or other pigmented area of skin that can be classified by the ABCDE symptom system.
    