develop lymphoma,lymphoma causes,immune system

Lymphoma is a type of cancer in which the cells of the lymph glands grow uncontrollably and become cancerous tumors. While there are several different types of lymphoma, it is not clear precisely what triggers or causes the cancer to begin growing. However, several risk factors may increase the likelihood of developing lymphoma. These risk factors include chemical exposure, autoimmune system disorders, use of immunosuppressive drugs, a weakened immune system, age and genetics.