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Published on: 7/21/2026
What treatments are available for unilateral tonsillar enlargement?
Unilateral tonsillar enlargement (when one tonsil is larger than the other) can result from several causes, ranging from common infections like tonsillitis or peritonsillar abscess to less common but serious conditions such as lymphoma or squamous cell carcinoma. Treatment depends entirely on the underlying cause:
- Bacterial infections: Antibiotics
- Viral infections: Rest, hydration, and supportive care
- Abscesses: Drainage and antibiotics
- Chronic or recurrent enlargement: Tonsillectomy may be recommended
- Suspected malignancy: Biopsy, followed by oncologic treatment (surgery, radiation, or chemotherapy)
Because the causes vary so widely, an accurate diagnosis from a healthcare provider is essential to guide the right treatment.
Not sure what's causing your symptoms? A free, AI-powered symptom check can help you understand possible causes in just a few minutes, based on your specific symptoms and medical history. It's instant, private, and can help you decide how urgently to seek care and what to discuss with your doctor—giving you clarity and confidence about your next steps.
Reviewed for medical accuracy: 07/20/2026
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Unilateral tonsillar enlargement means that one of the tonsils is bigger than the other. This can happen for different reasons.
Infections: Sometimes, a bacterial infection like actinomycosis can cause one tonsil to swell. In such cases, antibiotics might be used to treat the infection.
Lymphoma: In some cases, the enlargement could be due to a more serious condition like tonsillar lymphoma. This would require a different approach, often involving specialists who can provide the best care plan.
Other Causes: There are also other reasons why a tonsil might be larger, and each one needs a specific treatment plan.
Because the reasons for unilateral tonsillar enlargement can vary widely, it is important to see a doctor. If you're experiencing throat symptoms and want to better understand what might be causing them, you can use Ubie's free AI symptom checker to check your symptoms and get personalized insights before your appointment. They can run tests to figure out the cause and recommend the best treatment. Always remember that early diagnosis can be very helpful in managing the condition effectively.
(References)
Berkowitz RG, & Mahadevan M. (1999). Unilateral tonsillar enlargement and tonsillar lymphoma in .... The Annals of otology, rhinology, and laryngology, 10527279.
Takasaki K, Kitaoka K, Kaieda S, Hayashi T, Abe K, & Takahashi H. (2006). A case of actinomycosis causing unilateral tonsillar .... Acta oto-laryngologica, 16864502.
Rasić D, Perić A, & Vukomanović-Durdević B. (2010). A case of an unilateral tonsillar hypertrophy caused by .... Acta medica (Hradec Kralove), 20608230.
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