Above shows Alistair Family Genogram. A genogram is a graphic that depicts a person's family members, their relationships, and their medical history. The genogram enables the patient to see inherited behavioral patterns, as well as medical and psychological issues that run in families. A genogram is a pictorial representation of a person's family tree, relationships, and background. It's more than just a typical family tree; it provides information on the family's medical history and behaviors for at least three generations.