Unilateral Tonsillectomy: Why Only One Side? - Otolaryngology

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Regarding the removal of the tonsils, only one side is removed..?


Hello Dr.
Cheng, I previously consulted you regarding my long-term issue with chronic tonsillitis.
The last prescription I received included Amoxicillin 500 mg, Ibuprofen 400 mg, and an expectorant.
After completing the two-week course, as soon as I stopped taking the medication, the inflammation returned.
The symptoms consistently involve pain in the left tonsil, which radiates to my ear, and the left tonsil appears more swollen.
I also experience difficulty swallowing and a sensation of nausea.
In the past year, I have seen doctors for my tonsillitis at least 20 times.
I previously underwent surgery for a vocal cord cyst at Linkou Chang Gung Memorial Hospital.
Today, I visited Chang Gung again, and the doctor provided me with a bottle of mouthwash and a prescription for Pilocarpine to treat my dry mouth.
It seems I have been experiencing chronic dry mouth, and I wonder if it's related to the long-term use of antibiotics and anti-inflammatory medications.
After discussing my treatment options, we concluded that medication only addresses the symptoms, and surgery was ultimately decided upon.
However, I noticed that the surgical notes indicate only the removal of the left tonsil.
I haven't seen any information online about unilateral tonsillectomy.
What is the reasoning behind this? It seems odd to leave one tonsil intact, doesn't it?

Lin Hsin-Hung, 20~29 year old female. Ask Date: 2015/12/28

Dr. Zheng Jueyi reply Otolaryngology


Hello: Generally, snoring or chronic tonsillitis is often associated with bilateral tonsil enlargement, so surgery typically involves the removal of both tonsils.
However, if there is only suspicion of abnormalities in one tonsil, it is possible to remove just the affected side.
If there are concerns that the other side may also develop issues in the future, you can discuss with your physician whether to proceed with a bilateral tonsillectomy or to manage only the affected side.
Wishing you safety and good health.
Sincerely, Dr.
Cheng Jue-Yi, Director of the Department of Otolaryngology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2015/12/28

More Info


Unilateral tonsillectomy, or the surgical removal of only one tonsil, is a procedure that may seem unusual at first glance, especially since many people are accustomed to hearing about bilateral tonsillectomies, where both tonsils are removed. However, there are several valid medical reasons for opting for a unilateral approach, particularly in cases of chronic tonsillitis or other related conditions.

In your case, it appears that you have been experiencing persistent inflammation and pain in your left tonsil, which has been recurrent despite antibiotic treatment. This chronic condition can lead to significant discomfort, swallowing difficulties, and even referred pain to the ear, as you have described. The decision to perform a unilateral tonsillectomy is often based on the specific clinical presentation of the patient. If one tonsil is significantly more affected than the other, and the other tonsil is functioning normally, the surgeon may choose to remove only the problematic tonsil. This approach can help alleviate symptoms while preserving some immune function provided by the remaining tonsil.

The tonsils play a role in the immune system, particularly in young individuals, as they help to filter out pathogens that enter through the mouth and nose. By leaving one tonsil intact, the body may still benefit from some level of immune response, which can be particularly important in children or young adults. Additionally, unilateral tonsillectomy may reduce the risk of complications associated with removing both tonsils, such as increased risk of bleeding or infection post-surgery.

It's also worth noting that in some cases, the tonsils can become asymmetrical due to chronic inflammation or other underlying conditions. If the right tonsil is healthy and not contributing to your symptoms, the surgeon may determine that it is unnecessary to remove it. This decision is often made after careful evaluation of the patient's history, symptoms, and the results of any imaging studies or examinations.

In your situation, the ongoing issues with your left tonsil, including the recurrent infections and the pain radiating to your ear, suggest that it was the right choice to proceed with the surgery. The fact that you have been experiencing these symptoms for an extended period and have seen multiple healthcare providers indicates that a more aggressive treatment approach was warranted.

Post-operative care is also crucial after a unilateral tonsillectomy. You may experience pain and discomfort in the throat, particularly on the side where the tonsil was removed. Pain management, hydration, and a soft diet are typically recommended during the recovery period. It's essential to follow your surgeon's post-operative instructions closely to ensure a smooth recovery.

In conclusion, unilateral tonsillectomy is a valid and often necessary procedure for patients with chronic tonsillitis or other tonsil-related issues affecting one side. By removing the affected tonsil while preserving the other, healthcare providers aim to alleviate symptoms and maintain some immune function. If you have further questions or concerns about your surgery or recovery, it is always best to discuss them directly with your healthcare provider, who can provide personalized advice based on your medical history and current condition.

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