What happens to your tonsils when you have mono?

During an infection with mononucleosis (mono), caused by the Epstein-Barr virus, the tonsils often become swollen and inflamed. This can lead to a sore throat, difficulty swallowing, and swollen lymph nodes in the neck. In some cases, the tonsils may become so swollen that they obstruct the airway, causing difficulty breathing.

In severe cases of mono, the tonsils may become covered with a white or yellow coating, and the surrounding tissue may become red and swollen. Additionally, the tonsils may become enlarged, making it difficult to swallow and speak.

In most cases, the swelling of the tonsils during mono will resolve within a few weeks as the infection runs its course. However, in some individuals, the tonsils may remain enlarged for a longer period or even become chronically enlarged, requiring medical intervention.