Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to hidradenitis suppurativa ?
    ### Response:
    In most cases, the cause of hidradenitis suppurativa is unknown. The condition probably results from a combination of genetic and environmental factors. Originally, researchers believed that the disorder was caused by the blockage of specialized sweat glands called apocrine glands.
    