Adenoid hypertrophy can cause coughing in patients.

The adenoids are lymphatic tissue located at the posterior wall of the nasopharynx, which proliferate significantly during childhood. Excessive enlargement can lead to bilateral nasal obstruction and retention of nasal secretions, causing sinusitis. In this case, patients may experience post-nasal drip, where the inflammatory secretions from the nasal cavity gradually move towards the oropharynx, and stimulate the mucous membrane of the oropharynx, leading to irritative coughing.

At this point, relevant examinations such as lateral nasopharyngeal radiography and sleep monitoring are needed to confirm whether the patient has adenoid hypertrophy. If the adenoids are significantly hypertrophied, surgical treatment is necessary to resolve this issue.