Enlarged tonsils, or tonsillar hypertrophy, mean the tonsils are abnormally big and may not shrink even after an illness. Tonsils are two glands at the back of the throat that trap germs and often swell during infections. While tonsils can appear large and still be normal in children (especially those aged 3-7), common causes of enlarged tonsils include repeated viral infections, adenoid hypertrophy and adenotonsillar disease.
Persistent tonsillar hypertrophy in adults can cause symptoms such as snoring, sleep disruption, throat irritation, recurrent tonsillitis, swallowing difficulties, or a muffled voice.Â
Here are some basic statistics about tonsillar hypertrophy in adults:
Though tonsils typically shrink with age, chronic inflammation can maintain enlargement. A one-sidedly enlarged tonsil that persists, especially with pain, bleeding, weight loss, or a neck lump, is a red flag requiring urgent ENT assessment.
Enlarged tonsils are common in children and are usually normal unless they cause breathing, sleep, swallowing, or growth problems. Enlarged tonsils may cause symptoms such as loud snoring, mouth breathing, restless sleep, irritability or poor concentration, even without frequent sore throats. For sleep-disordered breathing or recurrent infections, an ENT review can diagnose and guide treatment, ranging from observation to medical therapy or surgery.Â
Enlarged tonsils in toddlers can cause signs such as restless sleep, noisy breathing, feeding difficulties, or poor weight gain, all of which warrant careful attention. Tonsillar hypertrophy in toddlers can obstruct their airways, impair sleep, leading to behavioural changes and poor school performance. See a doctor promptly if symptoms worsen to assess if treatment is needed.
Common signs in children include:
Symptoms
Common symptoms of enlarged tonsils range from no symptoms at all to blocked breathing, loud snoring and trouble swallowing. Some people have enlarged tonsils, no pain, and only notice sleep problems or mouth breathing. Others get repeated sore throats and fever because they also become infected.
See an ENT specialist when enlarged tonsils interfere with breathing or swallowing, or cause infections in children. Left untreated, enlarged tonsils can lead to airway obstruction and may cause children to briefly stop breathing at night.
This is especially important when enlarged tonsils and adenoids are suspected, as adenoids can block the nose and worsen snoring in children. Your doctor should also check for a persistent sore throat and a peritonsillar abscess if recurrent infections occur.
Enlarged tonsils in adults also deserve review. In adults, an enlarged tonsil on one side can be due to illness or benign causes, but persistent unilateral tonsillar hypertrophy requires assessment to rule out uncommon, serious causes.
Diagnosis is based on your symptoms along with a physical examination of your throat and neck, with specific diagnostic tests used when treatment plans are changed.Â
An exam checks the size of swollen tonsils and adenoids, signs of infection, and whether one tonsil is noticeably larger. Your doctor will grade your tonsils and adenoids from 1 to 4 based on how much the large tonsil partially blocks your airway.
If infection is suspected, a throat swab may be performed to test for bacterial infections, such as strep. If obstructive sleep apnea is a concern, a study may be recommended, especially when the child’s symptoms suggest breathing pauses at night.
Treatment for enlarged tonsils without surgery depends on the underlying cause. Conservative treatment options for tonsillar hypertrophy include medications for infections and allergies, as well as observation. Your doctor or family physician can guide your treatment plan.
If the enlargement is mainly due to infection, treatment may include pain relief, hydration, and antibiotics. If allergies or chronic nasal inflammation are contributing, nasal steroid sprays or antihistamines may reduce the swelling. Reducing irritants such as secondhand smoke can also help.
In many children, enlarged tonsils and adenoids improve over time as the child reaches adolescence, and the tissues may return to normal size. This is often the most reassuring answer to the question, “Are enlarged tonsils normal?” They can be, as long as breathing, swallowing and the child’s growth are not affected. Children with enlarged tonsils who experience weight loss should see a doctor. A doctor may prescribe antibiotics for children with confirmed strep throat.Â
In Singapore, parents often notice symptoms in children during school terms when viral infections and common viruses circulate in classrooms. A plan that includes clear red flags can reduce unnecessary antibiotics and repeated clinic visits.
Surgery to remove enlarged tonsils is called tonsillectomy, and it is considered when treatment with medication and observation does not help, especially in children with obstructive sleep apnoea, sleep apnea, or frequent infections.Â
The standard operation is a bilateral tonsillectomy. For children with breathing difficulties, a tonsillectomy is often combined with an adenoidectomy when both tonsils and adenoids are enlarged. This combined procedure addresses enlarged tonsils and adenoids and is a common head-and-neck surgery procedure in children.
Our ENT specialist may also discuss surgery when:
If there is a unilateral tonsillar hypertrophy, a doctor may recommend surgery for diagnostic reasons in selected adults, depending on the overall risk profile.
Recovery after tonsil surgery involves throat pain and a small bleeding risk, but most patients recover well with clear aftercare. Pain is expected and can last around two weeks, sometimes longer, in adults. Ear pain is also common because the throat and ear share nerve pathways.
Bleeding is the main serious risk. Any fresh bleeding after surgery should be treated as an urgent matter. Your doctor and ENT team will guide you on diet, pain control, and when it is safe for children to return to school or for adults to return to work. After a tonsillectomy for children with enlarged tonsils and adenoids, most children improve significantly.
Recurrent Enlarged Tonsils
Enlarged tonsils can recur after infections because they respond to repeated infections. Ultimately, the goal of enlarged tonsils treatment is to prevent ongoing disruption in children. Some parents worry that removing the tonsils weakens the child’s immune system. In fact, other parts of the immune system continue to do the same job, and a tonsillectomy is performed when the tonsils are causing more harm than good.
If enlarged tonsils or tonsillar hypertrophy are affecting breathing, swallowing, or energy in children or adults, you deserve a clear plan. Dr Barrie Tan will assess whether your or your child’s enlarged tonsils are likely to settle with time or whether surgery would offer lasting benefit. Ready for easier breathing and better rest? Book a consultation with Dr Barrie Tan at Gleneagles today.
MBBS, MRCS (Edinburgh), MMed (Otorhinolaryngology), FAMS
Dr Barrie Tan is an ENT specialist at Gleneagles Hospital, Singapore, with more than 20 years of clinical and surgical experience. He previously served as Head of ENT and Director of the Centre for Hearing and Ear Implants at Singapore General Hospital. The information provided is not intended as medical advice. More about our medical experts.
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