Are there different types of recurrent mouth ulcers?
Yes. Minor ulcers are the most common. They can appear inside the cheeks, on the lips, tongue and gums and, more rarely, on the roof of the mouth. Most of these ulcers are the size of the top of a pencil and can sometimes come in clusters. You can get four to six at any one time. Large ulcers are more severe and can last for five to ten weeks. They may appear near the tonsils and can be very painful, especially when swallowing. You usually only get one at a time. It is also possible to have up to 100 very small painful ulcers which last for one to two weeks. However, these last two varieties are very rare. You may get ulcers in other parts of the body such as your eyes or genital area. It is important to tell your dentist about this.