what causes a swollen uvula?
Uvulitis is not a life-threatening disease and it should go away in a few days. Usually, doctors would point out that the case of a swollen uvula can be one of the many things: 1  Dehydration.  Viral or bacterial infection. This is the most common cause of swollen uvula. This is an indicative that a harmful microorganism was about to enter either in the lungs of digestive tract.