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 ...

Swollen lymph nodes, or swollen glands, in the neck may indicate an infection. They can also occur due to a medical condition, such as an immune disorder or, less commonly, cancer. Treatment can ...

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.

Cancer can spread to the lymph nodes via a person’s lymphatic system. From here, it can travel through the lymphatic system to other parts of the body. The spread of cancer to a new part of the body ...