Actor Max Casella is opening up about his journey with pituitary dwarfism or growth hormone deficiency. The actor told Page Six Wednesday he didn't reach puberty until he was 27 due to the condition.

Dwarfism is a medical or genetic condition that causes someone to be considerably shorter than an average-sized man or woman. The average height of an adult with dwarfism is 4 feet, but dwarfism could ...

Dwarfism occurs when a person is unusually short. Dwarfism itself is not a disease and, as a result, it has no single medical definition. Different organizations define dwarfism according to various ...