Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Waardenburg syndrome ?
    ### Response:
    How is Waardenburg syndrome diagnosed? A diagnosis of Waardenburg syndrome (WS) is made based on signs and symptoms present. In 1992, the Waardenburg Consortium proposed diagnostic criteria, which includes both major and minor criteria. A clinical diagnosis of WS type 1 (the most common type) needs 2 major, or 1 major and 2 minor criteria.
    