Adenoid hypertrophy second degree that is, whether adenoid hypertrophy is serious, can not be judged only by the degree of hypertrophy, need to be judged according to clinical manifestations and treatment, after conservative treatment is effective at this time the condition is not serious, but if the conservative treatment is ineffective, the emergence of a series of clinical manifestations, the condition is regarded as more serious. When adenoid hypertrophy occurs, it is classified into four degrees according to the severity of adenoids blocking the posterior nostril as shown by electronic nasopharyngoscopy, in which the second degree is 26%-50% of adenoid hypertrophy blocking the posterior nostril. After conservative treatment, if adenoid hypertrophy does not cause snoring, open-mouth breathing or ear symptoms, the treatment is effective, and the condition is not serious at this time, and the condition can be relieved or disappear completely when the patient grows older. However, if conservative treatment is ineffective, otitis media, rhinitis, sinusitis, prolonged open-mouth breathing, adenoid face or even obstructive sleep apnea hypoventilation syndrome, the condition is more serious and requires surgical treatment. In conclusion, after diagnosis of adenoid hypertrophy, actively seek medical treatment for the primary disease, if adenoid hypertrophy aggravates, as soon as possible for surgical treatment.