The lymphatic system is a major part of the immune system. It’s made up of various lymph nodes and vessels. The human body has hundreds of lymph nodes throughout different locations in the body. The ...

The preauricular lymph nodes sit just in front of the ears. These tiny nodes play a vital role in protecting the body against infections and disease. In this article, we provide information on the ...

When the body fights an infection or injury, lymph nodes sometimes swell. Doctors call this a reactive lymph node. Treatment can depend on the cause. Lymph nodes house white blood cells. These cells ...

Swollen lymph nodes may result from an infection or illness. If symptoms last for a long time or occur with certain other symptoms, you may need medical care. Treatment depends on the cause of the ...

The lymphatic system has long been considered mysterious. But the lymphatic system – and the lymph nodes within it – plays fascinating and important roles in health and disease, from fighting off ...