The birth of a child with a disorder of sex development (DSD) is stressful for parents and members of the healthcare team. The "right" decisions about gender assignment (is it a boy? a girl?) and the best course of action (e.g., should there be surgery? what kind? when?) are not obvious. While there have been large advances in diagnostic assessments like genetic and endocrine testing, the tests do not always show what caused the DSD. And, even when the tests do reveal an explanation for the DSD, knowing what happened genetically or hormonally does not usually lead to a single "correct" treatment plan. Instead, it is likely that there are different acceptable treatment options - and parents will need to make decisions based, in part, on their personal preferences, values, and cultural background. Adding more stress to the situation is knowledge that many of the decisions that need to be made by parents early in a child's life are irreversible and exert life-long consequences for the child and the family.