- Sore throat or difficulty swallowing
- Metallic taste in the mouth
- Swollen tonsils
- Ear pain or pressure
- Persistent coughing
- Tonsil infections

Since they are easily visible, no special tests are needed to confirm the diagnosis of tonsil stones. Sometimes, they can be discovered coincidentally when a person gets an X-ray or scans because of other reasons.
Diagnosing tonsil stones usually involves a simple physical examination of your throat and a review of your medical history.
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