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

Allergies can sometimes cause swollen lymph nodes along with other allergy symptoms. They can become large and painful and lead to a sinus infection if left untreated.

You may have surgery to remove lymph nodes on one or both sides of your neck. This is called a neck dissection.

In this article, we discuss what can cause enlarged lymph nodes and whether it can be a sign of cancer. Read on as our expert weighs in.

An expert explained how sentinel lymph node biopsy has helped surgeons remove fewer lymph nodes, which can reduce lymphedema risk in patients with breast cancer.

Doctors share when to worry about swollen lymph nodes being a sign of cancer, including certain characteristics and coinciding symptoms.

Your lymph nodes, along with your spleen, tonsils, and adenoids, help you fight off illness and infections. Learn more about your lymph nodes’ part in this first line of defense.

Swollen lymph nodes are a sign that your body is fighting off an infection or an illness. Most of the time, they return to normal size afterwards.

Named after Greek and Roman mythical creatures, the lymph that flows around the body helps it fight off infection and maintain a fine balance of fluids.

Swollen glands in the neck are swollen lymph nodes and often mean your body is fighting an infection. Causes include viruses, bacteria, autoimmune disorders, and more.

The popliteal lymph nodes are behind the knee. Conditions such as infections and autoimmune conditions can cause swelling, but it is rarely due to cancer. Learn more.