White blisters on the tonsils are often seen in the following possibilities. In the first case, residues of food residues, patients are advised to rinse their mouths more often, which can make the white blisters subside. The second condition, tonsil stones, usually occurs in the supratentorial crypt and consists of a granular neoplasm of bacterial metabolites and food residues. It is relatively hard and can present with bad breath. If there is an infection, the patient may have a painful pharynx, but normally the patient has no obvious symptoms of discomfort. In the third case, pus plugs from suppurating tonsils, in which case the patient will have sore throat and fever. During the examination, a diffuse grayish-white purulent discharge can be seen on the surface of the tonsils, which can be gently scraped off, and there is no obvious bleeding when scraping. This secretion is attached to the surface and is not particularly tightly connected to the tonsils, which is different from tonsil stones.