Adenoid hypertrophy 3rd degree usually refers to adenoid hypertrophy III degree, which is more serious and some patients need to take surgical treatment and medication. Adenoid hypertrophy Ⅲ degree indicates that when the patient carries on the nasopharyngoscopy, the posterior nostril is blocked more than 51%~75%, the patient may have nasal congestion, open mouth breathing, snoring and coughing during sleep and other manifestations, and some patients will also have sleep apnea syndrome and adenoid face, which is a relatively serious situation. Patients with adenoid hypertrophy III degree need to be timely and often choose to use nasal spray glucocorticosteroid treatment, such as mometasone furoate nasal spray, fluticasone propionate nasal spray, etc., with the leukotriene receptor antagonist, such as montelukast sodium oral. In the presence of bacterial infection, antibiotics such as amoxicillin and cefixime can be used under medical supervision. Adenoidectomy is mostly taken after the doctor evaluates the eligibility for surgery when conservative treatments are not effective and in the presence of recurrent sinusitis, otitis media, and open-mouth breathing at bedtime.