Third-degree hypertrophy of the tonsils means that both tonsils are close to the midline or in contact with each other. Generally, the tonsils of children under the age of 3 can be physiologically enlarged, and shrink after puberty, but still maintain a certain size. Adult tonsils when the third degree of hypertrophy, can be chronic inflammation inflammatory hyperplasia, but do not rule out other diseases, at this time generally can not be self-healing. Tonsils are too enlarged, can cause breathing difficulties, swallowing difficulties, or slurred speech, but are rare. In some cases, it is only seen in young children. When the local immune function is weakened, inflammatory stimulus eliminated, physiological hypertrophy of the tonsils can atrophy, that is, self-healing, otherwise the hypertrophy of the tonsils will maintain the original size. Adults have been found to have three degrees of hypertrophy of the tonsils, such as bilateral hypertrophy is considered chronic inflammatory hyperplasia, while malignant tumors, lymphogranulomas and leukemia caused by the rapid development of enlarged tonsils, can be one-sided. If the tonsils are enlarged and have ulcers, the possibility of cancer must be considered. If the tonsils are enlarged in the third degree, it is recommended to actively consult a doctor, make a clear diagnosis after systematic examination, and follow the doctor’s instructions to standardize the treatment.