Tonsillitis decease is a major cause of serious automatic extraction of semantic descriptions of medical deceases such as heart attack and pneumonia. This paper image content. They applied the mapping of image features proposes a computer-aided-diagnosis of Tonsillitis using Tonsil with a domain of semantic concepts of medical image size and color. In this method, we employ red color and tonsil contents. F. Arambula Cosio, J.A. Marquez Flores, M.A.