Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Skin Cancer ?
    ### Response:
    Tests or procedures that examine the skin are used to detect (find) and diagnose nonmelanoma skin cancer and actinic keratosis. The following procedures may be used:         -  Skin exam: A doctor or nurse checks the skin for bumps or spots that look abnormal in color, size, shape, or texture.
    