Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Freiberg's disease ?
    ### Response:
    Freiberg's disease is rare condition that primarily affects the second or third metatarsal (the long bones of the foot). Although people of all ages can be affected by this condition, Freiberg's disease is most commonly diagnosed during adolescence through the second decade of life.
    