A Mouth ulcer is an ulcer that happens on the mucous membrane of the oral cavity. Mouth ulcers are very not unusual, happening in affiliation with many illnesses and by way of many one of a mechanism, but typically there may be no serious underlying motive. The most common causes of oral ulceration are nearby trauma e.g. Rubbing from a sharp area on a broken filling and aphthous stomatitis "canker sores", a circumstance characterized through recurrent formation of oral ulcers for in large part unknown reasons. Mouth ulcers frequently motive ache and discomfort and might alter the person's preference of food at the same time as healing happens e.g. averting acidic or spicy meals and beverages. They may shape in my opinion or a couple of ulcers may appear at the identical time.