Hypogonadotropic Hypogonadism 17 with or Without Anosmia, also known as hh17, is related to hypogonadotropic hypogonadism 2 with or without anosmia. An important gene associated with Hypogonadotropic Hypogonadism 17 with or Without Anosmia is SPRY4 (Sprouty RTK Signaling Antagonist 4). Affiliated tissues include pituitary and ovary, and related phenotypes are hearing impairment and osteopenia