This article describes a medical family therapy approach to working wi
th families of a child with a chronic medical illness. Medical family
therapy combines the systemic paradigm of family therapy with the biop
sychosocial paradigm of medicine to treat patients and families who ar
e experiencing medical illness or disability. This article describes h
ow family dynamics influence children's health and how children's heal
th influences family dynamics. It then addresses special assessment is
sues, treatment issues, and collaboration issues for medical family th
erapists when a child has a chronic illness.