White pus spots in the tonsils are usually acute tonsillitis, but may also be food retention or tonsil stones when white material can be seen at the tonsils and mistaken for pus spots. Acute tonsillitis is a common inflammatory disease of the pharynx, easy to develop when the temperature changes, mainly caused by type B hemolytic streptococcus, the pathological type is divided into catarrhal, follicular and cryptogenic, of which acute follicular or cryptogenic tonsillitis can be seen in the crypts between the mouth of the mucous membrane under the surface of the tonsils or yellow-white pus spots or yellow-white soya bean dregs-like material overflowing. When tonsil stones or food debris are trapped in the tonsils, white dots may be found there and are sometimes mistaken for pus spots. Tonsil stones are usually accompanied by a bad taste in the mouth. When unexplained white spots are found in the tonsils, it is important to seek medical attention and treatment after examination by a doctor.