Enlargement of the adenoids accompanied by a runny nose is not a sign of improvement but a symptom of worsening. Enlargement of the adenoids is primarily due to symptoms caused by acute viral or bacterial infections following a decrease in the body’s immunity and resistance. This can lead to diffuse congestion and edema of the glands, causing the patient to experience persistent nasal congestion and discharge of yellow nasal mucus. In severe cases, it can cause nocturnal suffocation. Initially, a detailed examination at the hospital is necessary. Diagnosis can be confirmed with an electronic nasopharyngoscope and a nasopharyngeal CT. During the examination, granular masses can be found on the posterior wall of the nasopharynx; these are soft in texture and not painful. In terms of treatment, during the acute phase of adenoid hypertrophy, symptomatic anti-inflammatory treatment is required, including the use of antibiotics and concurrent nebulizer inhalation to reduce congestion and edema of the adenoids. If the enlargement persists and conservative treatment is ineffective, adenoidectomy may be necessary to achieve a complete cure.