The appearance of white spots on the tonsils can be due to hyperplasia of keratinized material, caseous secretion, food debris and calcium salt deposition, etc. Common diseases that lead to the occurrence of this condition include tonsillar keratosis, chronic tonsillitis, tonsillar stones, etc. 1. Tonsillar keratosis: it may be related to repeated friction, inflammatory stimulation or local fungal infection, which causes abnormal proliferation and keratinization of tonsil lymphoid tissue, resulting in the appearance of white spots on the tonsils. 2. Chronic tonsillitis: the glandular crypt generates cheese-like secretion, and the symptom of white spots on tonsils appears, which is mainly caused by bacteria, leukocytes, lymphocytes, and epithelial aggregation of shedding in the crypt, and it can be accompanied by symptoms such as bad taste in the mouth and discomfort in the throat. 3. Tonsil stones: mostly found in the upper crypts of tonsils, mainly formed by calcium salt deposits of necrotic epithelium of tonsils, food residues and bacteria accumulated for a long period of time, which can be manifested as the appearance of white spots on the tonsils, and can be accompanied by symptoms such as foreign body sensation. It is recommended that people with the above symptoms should consult a doctor in time to find out the cause of the white spots on the tonsils, and actively treat the symptoms in order to avoid delaying the condition.