Lymph nodes are part of the network of your immune system that help protect your body from illnesses. Many are located in the head and neck, including under the jaw and chin. Lymph nodes are small and flexible. They can be round or bean-shaped.

What does swollen lymph nodes under your jaw mean?

The glands (lymph nodes) on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or sore throat. More serious infections may cause the glands to enlarge and become very firm and tender.

When should I worry about swollen lymph nodes under jaw?

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.