What could cause sore, swollen lymph nodes under the jaw?

Swollen lymph nodes under the jaw, also known as submandibular swelling, can be caused by different health conditions. According to the references provided, one potential cause is an infection, which can lead to swelling in this area as the body fights off germs. Another possible cause is a condition called torus mandibularis, which is a bony growth in the mouth that can sometimes be mistaken for other issues. Additionally, submandibular swelling could be an early sign of more serious conditions, though those are less common.

Here are some possible causes of swollen lymph nodes under the jaw:

1. Infections: These can include bacterial or viral infections that the body is trying to fight off.
2. Torus Mandibularis: This is a bony growth that might be noticed under the jaw.
3. Other Conditions: Sometimes, swelling might be an early sign of other health issues, though this is less common.

If you notice swelling under your jaw, it is important to consider these possibilities and seek medical advice if needed, to ensure proper diagnosis and treatment.