What can cause swollen submental lymph nodes under chin?

There are several. possible causes, such as viral or bacterial infections, blockage of a salivary gland or even cancer. These lymph nodes typically swell from a problem within the mouth, the lips, the tongue or the skin nearby. Please see your doctor to have them evaluated.
Swollen submental. infection or blockage may lead to swelling have doctor to evaluate reason for swelling.