The endoscopic examination is a very important part in the assessment of patient suspected or diagnosed to have obstructive sleep aponea. The endoscopic examination typically start with the examination of the nasal cavity, then the velopharynx and lastly the hypopharynx. This will allow the identifcation of any significant nasal, velopharyngeal or hypopharyngeal pathology that may contribute or cause the obstructive sleep aponea and will also help our consultant to decide on the treatment plan for each individual patient.