Armpit pain can be caused by many issues, from muscle strains to swollen lymph nodes. Here are possible causes of underarm ...

Lymph nodes are small glands that filter lymph, the clear fluid that circulates through the lymphatic system. During an infection, they accumulate bacteria or dead or diseased cells and may swell.

Albert Lin, orthopedic surgeon and chief of shoulder service at University of Pittsburgh Medical Center, tells TODAY.com. These include the nerves, blood vessels and lymph nodes, as well as ...

Usually, swollen chest lymph nodes are too deep in the chest for a person to feel them. Any swollen lymph nodes in the chest appear on imaging scans. Swelling can indicate an underlying condition.

Cancers of the mouth and oropharynx can spread to lymph nodes in your neck. Your surgeon might remove some or all of the lymph nodes in your neck. Lymph nodes are small bean shaped glands found ...