Your tonsils are the two bumpy pads at the back of your throat. They have small pockets on the surface called tonsillar crypts. Tonsil stones, also called tonsilloliths, are small lumps that develop in the tonsil crypts, the small dips or holes of your tonsils. When food particles, dead cells, mucus, and other debris get stuck in these pockets, they can slowly harden into small, hard, white or yellow stones in the tonsils. This is what causes tonsil stones.
Tonsil stones are usually tiny, often just a few millimetres in size, but some very large tonsil stones, over a centimetre, have been found. Small tonsilloliths appear white or yellowish, whereas larger stones may appear yellow.
Tonsil stones smell bad because they are teeming with bacteria that produce volatile sulfur compounds as they break down bits of food debris, dead cells and other matter caught in the stones. This is why tonsilloliths are a common cause of persistent bad breath.
Tonsil stones can cause symptoms ranging from barely noticeable to bothersome. If the stones are tiny, many won’t even realise they have them.
A sensation of something is stuck in the throat or at the back of the throat, with difficulty swallowing.
Ear pain may present when the nerves that connect the tonsils and ears are affected, along with white or yellow spots on the tonsils.
Sometimes, individuals are surprised when they find themselves coughing up a tonsil stone.
When to See an ENT Specialist
If you have tonsil stones that bother you or cause frequent tonsillitis, it is best to see an ENT doctor. You should also be evaluated if your tonsils look very red, puffy, or bleed easily; if you often have a sore throat or earache from a tonsil infection; or if one side of your tonsils looks noticeably different from the other and doesn’t improve.
Risk factors for developing tonsil stones include chronic tonsillitis, large tonsils with deep tonsillar crypts, poor oral hygiene, and certain medical conditions. If bad breath persists or the tonsils cause ongoing medical issues, specialist intervention is recommended.
An ENT doctor can diagnose tonsilloliths by examining your tonsils. Typically, they can see the stones during a routine tonsillar examination. If the stones are hidden deep inside the tonsillar crypts of your tonsils, the doctor might use a flexible scope (a thin tube with a camera) or a CT scan to find them. In most cases, early, conservative treatment of tonsilloliths responds well; only persistent cases require tonsillar surgery.
At Barrie Tan ENT Head & Neck Surgery, our ENT specialists also assess the size of your tonsils and the depth of the tonsil crypts. This helps them determine the most appropriate course of treatment for tonsilloliths and whether non-surgical methods are sufficient.
Preventing tonsil stones starts with maintaining good oral hygiene. This means brushing your teeth at least twice daily and using a soft-bristled toothbrush to gently brush the back of your tongue. Floss regularly and rinse with an alcohol-free mouthwash to remove bacteria from the tonsils to maintain oral health. Good oral hygiene reduces the accumulation of food particles, dead cells and bacteria in the tonsils, thereby helping prevent tonsil stones from developing.
Stay hydrated by drinking plenty of water. Adequate saliva flow also helps wash away food debris from the tonsils. Since places like Singapore often have air conditioning that can dry out your mouth, keep a bottle of water handy. Certain sticky or sugary foods can contribute to the development of tonsilloliths, so maintaining overall oral health is important.
If you want to try removing tonsil stones at home, gargling with warm saltwater is an effective first step. This can loosen deposits in the tonsils. You can also use a low-pressure water pick, such as a small water flosser, and gently spray the tonsillar surface to remove visible food debris.
Another practical and safe method for manual removal is to use a clean, slightly damp cotton swab to gently dislodge the tissue around the affected tonsillar area until the tonsillar stones come free. Just remember, do not use anything sharp. The tissue in your tonsils is very sensitive and can bleed easily. If home remedies or manual removal do not work, consult a medical professional about other treatments, such as tonsil stone removal.
If you have tonsillitis with tonsilloliths, a physician may prescribe antibiotics to reduce swelling. However, antibiotics are just a quick fix. They do not address the primary issue: the tonsils have numerous deep pockets where tonsil stones can grow.
The best way to permanently stop tonsil stones from coming back is to have a surgery called a bilateral tonsillectomy, which means taking out both tonsils. When the tonsils are removed, the small pockets where food particles and bacteria can become trapped and form tonsilloliths are absent, so new ones cannot form.
ENT doctors usually recommend this operation if someone has recurrent or chronic tonsillitis affecting the tonsils 3 or more times a year, has persistent tonsilloliths that home remedies or gargling do not resolve, or has tonsils so large they cause breathing problems or interfere with sleep, leading to obstructive sleep apnea. Frequent tonsillar infections are another strong indication for tonsil stone removal in Singapore. Your immune system continues to function normally after the tonsils are removed, as other tissues take over the role of the tonsils.
The operation is done while you are under general anaesthesia and usually lasts about 30 to 45 minutes. Dr Barrie Tan uses precise techniques to cut tissue, reducing heat damage to adjacent areas. This helps reduce postoperative pain and lowers the risk of bleeding later. Most patients can go home the same day, or, in rare cases, after a single night in the hospital.
ENT Specialist for Tonsil Stones
If you have mild to moderate tonsil stone symptoms, it is advisable to book an appointment with Dr Barrie Tan. Early diagnosis helps improve patient outcomes.
Getting your tonsils removed is a common operation, but like all surgeries, it has risks. The main worry is bleeding post-op, which happens in about 2 to 4 out of every 100 adults who have the procedure. This usually occurs within the first two weeks.
A sore throat is normal and typically hurts most between days three and seven, then gradually improves. You might also temporarily notice changes in how things taste, feel like you have an earache, or feel a slight lump where the tonsils healed. These side effects usually disappear within a few weeks.
Most adults require 10 to 14 days to fully recover. To heal well, stay hydrated by drinking plenty of fluids, eat soft foods, take your pain medication exactly as prescribed, and avoid being around those who are sick. You may find it difficult to swallow food at first, so stick with cool, soft options. Brush your teeth gently, clean your tongue with a soft toothbrush, and maintain oral hygiene to support oral health during recovery.
If tonsil stones keep recurring, you often get infections in your tonsils, or bad breath won’t go away with brushing your teeth and gargling, it is time to see a specialist. Persistent halitosis caused by tonsilloliths may also indicate other medical conditions. At Barrie Tan ENT Head & Neck Surgery at Gleneagles Hospital, we’ll provide a thorough evaluation and develop a tonsil stone treatment plan tailored to you, whether your tonsilloliths can be treated non-surgically or require tonsillar removal. Contact our clinic to book an appointment.
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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