Swollen lymph nodes are usually a sign of an infection somewhere in the body. You may notice swelling and tenderness, for instance, in the neck, groin, or armpits, alongside other symptoms, such ...

Swollen lymph nodes in your neck, armpit, head, and other parts of the body often occur when your body is fighting an infection or disease. Lymph nodes filter fluids from the lymphatic system.

Swollen lymph nodes may result from an infection or illness. If they last for a long time or occur with other symptoms, you may need medical care. Treatment is specific to the cause of the swollen ...

A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped clusters of immune cells in your neck, armpit, or groin puffs up, it’s typically an ...

Discover how allergies can cause swollen lymph nodes, and learn to distinguish between normal immune responses and warning signs that require medical attention.

In some cases, swollen lymph nodes may indicate sinusitis (a sinus infection). People with allergies are three times more likely to get sinusitis than those without. Allergy-related inflammation ...

“If a (swollen lymph node) has been present for a long time, or if it’s growing, that’s when we start to wonder if it might be something more serious,” says O’Hare. 4.