What are Adenoids?
The adenoids (pharyngeal tonsil) are a mass of lymphoid tissue located at the back of the nasal cavity, where it meets the throat (nasopharynx). Like the palatine tonsils, the adenoids are part of the Waldeyer's ring — a ring of lymphoid tissue that forms the first line of immune defense against inhaled and ingested pathogens. Adenoids are largest and most active during early childhood (ages 3–7), then gradually begin to atrophy in adolescence; in most adults, they have regressed completely.
Adenoids become clinically significant when they enlarge to a degree that blocks the nasal airway (causing nasal obstruction and mouth breathing), obstructs the Eustachian tube opening (causing recurrent middle ear fluid and hearing loss), or acts as a reservoir for recurrent bacterial infections. This condition is called adenoid hypertrophy.
Symptoms of Adenoid Hypertrophy
- Chronic nasal obstruction: Persistent mouth breathing, especially during sleep and physical exertion.
- Snoring and sleep-disordered breathing: Ranging from heavy snoring to obstructive sleep apnea, which can significantly impact a child's sleep quality, behavior, growth, and cognitive development.
- Recurrent ear infections and hearing loss: Enlarged adenoids obstruct and infect the Eustachian tube, impairing middle ear ventilation and leading to otitis media with effusion (glue ear) and conductive hearing loss.
- Nasal voice and hyponasal speech: The characteristic flat, blocked vocal quality of a child with severely obstructed nasal airways.
- Adenoid facies: In children with longstanding adenoid hypertrophy, chronic mouth breathing can lead to characteristic facial changes including an elongated face, open bite, and high-arched palate.
- Recurrent sinusitis and rhinorrhoea: The adenoids can harbour pathogenic bacteria that continuously re-infect the sinuses and posterior nasal passages.
Adenoidectomy with Coblation Technology
At our clinic, adenoidectomy is performed using Coblation (Controlled Ablation) technology — a plasma-based technique that dissolves adenoid tissue at low temperatures (40–70°C) rather than burning it, as traditional electrocautery does. This lower-temperature ablation results in significantly less thermal damage to surrounding tissue, less post-operative pain, less bleeding, and a faster recovery compared to conventional techniques.
The procedure is performed under general anesthesia with the child asleep; it takes approximately 15–20 minutes. Adenoids are accessed through the open mouth; no external incisions are made. Children are typically discharged the same day.
Recovery
Most children experience mild throat discomfort and a slightly nasal quality to the voice for 3–5 days. They can return to normal activities, including school, within 3–5 days. A soft, cool diet is recommended for the first few days. Strenuous physical activity should be avoided for 1 week. Parents typically notice an immediate and dramatic improvement in nasal breathing and snoring from the first night after surgery.
Frequently Asked Questions
Will my child's immune system be weakened after adenoidectomy?
No. The adenoids are just one component of the immune system's extensive lymphoid network. When removed, the remaining tonsils, lymph nodes, and immune tissues fully compensate. Multiple studies have shown no increase in susceptibility to infection following adenoidectomy.
Is adenoidectomy often combined with tonsillectomy?
Yes — when both adenoids and tonsils are enlarged and causing symptoms, they are frequently removed simultaneously in a combined adenotonsillectomy procedure, under the same general anesthetic, to avoid two separate surgeries.
Can adenoids grow back?
Adenoid regrowth after complete surgical removal is uncommon but can occur, particularly in young children under 3 years of age. Coblation technique minimizes the risk of regrowth by achieving thorough and complete tissue removal.
