Are tonsil stones contagious?

Have you noticed a white speck in your throat and wondered if you'd caught something? You didn't. Tonsil stones are not contagious, and you cannot catch them from kissing or sharing food or drinks. They form when material builds up and hardens in small pockets in your own tonsils. A throat infection can look similar, though, and the virus or bacteria behind it may spread to other people. 

What you will learn in this article: 

• Tonsil stones do not spread from person to person. 

• They form when debris hardens in small pockets in the tonsils. 

• A sudden sore throat, fever or pain when swallowing may point to an infection. 

• A throat exam and test may be needed because stones and infections can look alike. 

If you keep getting tonsil stones or you're not sure what's causing your symptoms, schedule an appointment with an Aspen Dental provider. Your care team can look at your tonsils and help you figure out what's going on. 

What causes tonsil stones? 

Your tonsils have small pockets and folds on their surface. Food, dead cells, mucus and minerals from saliva can collect there. Over time, this material may harden into a small white or yellow lump. Northwestern Medicine explains that these lumps are tonsil stones and are not contagious.¹ 

People with deeper tonsil pockets may collect more debris. Brushing, flossing, staying hydrated and gargling may help limit buildup, but some people still get stones more easily than others. 

Are tonsil stones the same as tonsillitis or strep throat? 

No. Tonsil stones are hardened material, while tonsillitis is swelling and irritation of the tonsils. MedlinePlus notes that tonsillitis is often caused by a virus, though bacteria such as those that cause strep throat may also be responsible. Tonsillitis itself is not contagious, but the virus or bacteria behind it may spread.² 

Strep throat is a bacterial infection of the throat and tonsils. Tonsil stones are not caused by catching strep from someone else. Because stones and tonsillitis can look alike, it helps to consider all your symptoms. 

How can you tell tonsil stones apart from a contagious infection? 

Tonsil stones may cause: 

• Bad breath 

• A scratchy or sore feeling 

• A sense that something is stuck in your throat 

• A small white or yellow lump on a tonsil 

• Trouble swallowing if a stone is large 

A throat infection may be more likely if you suddenly feel sick. The Centers for Disease Control and Prevention lists fever, pain when swallowing, a sore throat that starts quickly, red or swollen tonsils, tender glands in the neck and white patches as possible signs of strep throat. A medical test is needed to confirm strep.³ 

A white spot alone cannot tell you whether you have a stone or an infection. Contact a medical provider if you have a fever, severe throat pain or symptoms that are getting worse. 

When should you see a dental provider or doctor? 

Small tonsil stones often clear on their own. Regular brushing and saltwater gargles may help with bad breath and buildup. An American Family Physician review notes that stones are usually managed without a procedure. Surgery is rarely needed unless a stone becomes too large to pass on its own.⁴ 

Talk to a dental provider or doctor if you notice: 

• Tonsil stones that keep coming back 

• A stone that is large or growing 

• Ongoing bad breath that does not improve 

• Pain or trouble swallowing 

• A lump or one-sided swelling that does not go away 

• Fever or a sudden, severe sore throat 

Get urgent medical care if you have trouble breathing, start drooling or have major trouble swallowing.² 

Do not scrape or dig at a tonsil stone with your fingernail or a sharp tool. Tonsil tissue can bleed easily. If a stone will not come out or is causing pain, have a medical provider examine it. 

If the stones keep coming back, a dental provider or doctor can discuss treatment options beyond home care. 

If you are not sure whether you have a stone or an infection, contact your local dental provider. Your care team can check your mouth and help you find the right next step. 

Are tonsil stones contagious? FAQs 

Still have questions about tonsil stones? These answers cover a few common concerns. 

Can tonsil stones cause bad breath even if they are small? 

Yes. Even a small stone can hold material that causes odor. If bad breath does not improve with regular brushing and flossing, ask a dentist or doctor to check it. 

Do tonsil stones mean you have poor oral hygiene? 

Not always. Good oral care can reduce buildup, but tonsil stones can still form when debris collects in deep tonsil pockets. 

Can removing your tonsils stop tonsil stones for good? 

Removing the tonsils also removes the pockets where stones form. But since surgery is rarely needed for stones alone, it's usually reserved for cases where a stone becomes too large to pass or causes ongoing problems. 

Can tonsil stones affect your sense of taste or smell? 

A change in taste or smell is not enough to tell whether you have tonsil stones. Many conditions can affect these senses, so tell a medical provider if the change lasts or comes with other symptoms. 

Sources 

¹ Northwestern Medicine, HealthBeat: “Tonsil Stones 101.” https://www.nm.org/healthbeat/healthy-tips/Tonsil-Stones-101 

² National Library of Medicine, MedlinePlus: “Tonsillitis.” https://medlineplus.gov/tonsillitis.html 

³ Centers for Disease Control and Prevention, Group A Strep: “About Strep Throat.” https://www.cdc.gov/group-a-strep/about/strep-throat.html 

⁴ American Academy of Family Physicians, American Family Physician: “Tonsillitis and Tonsilloliths: Diagnosis and Management.” https://www.aafp.org/afp/2023/0100/tonsillitis-tonsilloliths