Here's a genogram of Mr. Uy who is a 23 year old patient with head ache. The structure of a genogram is similar to that of a family tree, but it serves a completely different purpose. A genogram incorporates information about family interactions and ties, whereas a family tree just reveals lineage. The essential information present in family tree, such as each person's name, gender, birth date, and death date, is contained in a genogram.