This section, Diagnosis, is a textbook I have created on how I move from a complaint of hoareness to a diagnosis of the cause and finally a plan for treatment.

Foundations - The basis for thinking about how sound is created. This includes definitions that are important to understanding voice disorders and an overview of endoscopic anatomy.

Hoarseness - This section describes the various ways a voice can be impaired.

Examination - This consists of two parts: how to hear a voice disorder, then how to visualize the sound impairment with an endoscope.

Reflux - Reflux has its own section because if you have been hoarse, someone will tell you that you have invisible reflux.