The adenoids are located at the back end of the nasal cavity in the nasopharyngeal area, so the examination needed for adenoid hypertrophy is generally the electronic nasopharyngoscopy. Electronic nasopharyngoscopy is a minimally invasive procedure that allows direct visual observation of the enlarged adenoids and the blockage of the posterior nasal apertures. Modern electronic nasopharyngoscopes are very thin; they can be inserted through the nostrils directly into the nasopharynx, providing a clear view of the adenoids with minimal discomfort and no radiation exposure, making it the preferred method. Another test that can be performed is a lateral X-ray of the nasopharynx. This examination has been a classic approach and is available in many township and county hospitals. It can accurately display the condition of adenoid hypertrophy and any airway obstruction. However, the only drawback is that it involves some level of radiation exposure.