Most ulcers are benign, but if they occur on the surface of the tonsils, the possibility of malignancy cannot be ruled out. This kind of ulcer may be caused by viral invasion or fire, or local mucosal abrasions and injuries, which repeatedly do not heal. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. If the tonsillar ulcer does not heal repeatedly and the history of the disease is more than one or two months, clinical local biopsy for pathology to rule out the possibility of malignancy. There is a disease called leukoaraiosis, in which the patient may have ulcers in the genitals and other parts of the body in addition to localized ulcers on the tonsils, in which case high vigilance is required.