Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) epidermolysis bullosa simplex ?
    ### Response:
    Epidermolysis bullosa simplex is one of a group of genetic conditions called epidermolysis bullosa that cause the skin to be very fragile and to blister easily. Blisters and areas of skin loss (erosions) occur in response to minor injury or friction, such as rubbing or scratching.
    