After today's lecture I really wanted to do a post on some sort of taste disorder. I found quite a few, but phantom taste perception was the most interesting. Phantom taste perception is defined as a lingering, often unpleasant taste in your mouth even though you have nothing in there. It is considered the most common taste disorder. This disorder can be caused by a number of things. Some examples are: Radiation exposure, Poor oral health, Surgeries to the ear, nose and throat, etc. In order to be diagnosed with a taste disorder you must see a otolaryngologist. They measure the lowest concentration of a taste quality that you can detect to decide if you have a disorder or not.