It could be an infection, a vaccine response, or an autoimmune disease symptom, per experts.

Lymphoproliferative disorders are a group of diseases that cause an uncontrolled production of lymphocytes, a type of white blood cell. Examples include non-Hodgkin’s lymphoma and certain leukemias.

Autoimmune lymphoproliferative syndrome (ALPS) is a rare condition that causes a person to produce excess lymphocytes. This can cause swelling of the lymph nodes. Lymphocytes are a type of white blood ...

Doctors monitor lymphocyte and other blood cell levels to predict how your lymphoma will progress. Low lymphocyte counts may suggest that cancer has spread to your bone marrow, or it can be a side ...

For decades, cancer has been seen as a silent invader—an external force waiting to strike without warning. Treatments were framed as weapons of war, and our bodies became the battleground. However, ...

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 ...