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Your type is based on the characteristics of the cells involved in your disease and their behavior. There are multiple types of Hodgkin's lymphoma. The extra cells crowd into the lymph nodes and cause swelling and other Hodgkin's lymphoma signs and symptoms.

The lymphoma cells attract many healthy immune system cells to protect them and help them grow. The DNA changes tell the cells to multiply rapidly and to continue living when other cells would naturally die.

A cell's DNA contains the instructions that tell a cell what to do. They know that it begins when infection-fighting white blood cells called lymphocytes develop changes in their DNA. Doctors aren't sure what causes Hodgkin's lymphoma.