In medicine, a family history (FH or FHx) consists of information about disorders of direct blood relatives of the patient.[1]Genealogy typically includes very little of the medical history of the family, but the medical history could be considered a specific subset of the total history of a family.[citation needed] Accurate knowledge of a patient's family history may identify a predisposition to developing certain illnesses, which can inform clinical decisions and allow effective management or even prevention of conditions.[2][3]