Adenoids are lymphatic tissues in the nasopharynx, located at the midline of the posterior parietal wall, and are part of the pharyngeal lymphatic ring, which is largest in children at the age of 5-6 years during normal physiological development and gradually shrinks later. If it affects the general health or adjacent organs, it is called adenoid hypertrophy. Adenoid hypertrophy can cause open-mouth breathing during sleep, snoring, nasal secretions, occlusive nasal sound when speaking, and in serious cases, the pharyngeal tube can be obstructed causing secretory otitis media and resulting in hearing loss, and even general nutrition and developmental disorders, mainly manifested as chronic toxic reflex neurological symptoms, such as sluggish expression, chest tightness and restlessness, poor lung expansion, and over time, resulting in chicken chest or flat chest, etc. Therefore, adenoid hypertrophy should be Therefore, adenoid hypertrophy should be treated surgically as soon as possible. In the past, the traditional scraping method to remove adenoids had many drawbacks, such as more bleeding, unclear visual field, easy residual, heavy postoperative reaction, late feeding, easy recurrence, and poor surgical results. The Department of Otolaryngology of the hospital took the lead in the domestic application of low-temperature plasma ablation under a visual microscope for the treatment of adenoid hypertrophy to make up for the shortcomings of traditional surgery. This technology can ensure a clear surgical field, almost no bleeding during surgery, light postoperative reaction, little patient pain, complete removal, and significant treatment effects.