Upper respiratory infections, including the cold and flu, often trigger enlarged lymph nodes. In some cases, something else causes a lump to form under the chin. Cancer, cysts, benign tumors, and other medical conditions can cause chin lumps. Lumps under the chin can go away on their own.

When should you worry about a swollen lymph node?

When to see a doctor

See your doctor if you're concerned or if your swollen lymph nodes: Have appeared for no apparent reason. Continue to enlarge or have been present for two to four weeks. Feel hard or rubbery, or don't move when you push on them.

What is a submental lymph node?

The submental lymph nodes collect lymph from the central area of the lower lip, the skin of the mental region, the tip of the tongue, and the incisor teeth. Next, they drain into the submandibular lymph nodes and the deep cervical group, which eventually drains into the jugular lymph trunk.