The cause of<unk>  is unknown, but research has identified a number of factors that increase risk. Age The risk of developing<unk>  increases with age. Although the disease can occur at any age, it mainly affects older adults. It is uncommon in people under age 40 and very rare in children. Infection People with HIV are at slightly higher risk than the general population. For patients who were previously diagnosed with an AIDS-defining illness, the risk of developing<unk>  is 14-fold higher. Other factors First-degree family history of non-Hodgkin lymphoma, hematological malignancy, or hepatitis C infection are linked to an increased risk of<unk> . There are also specific risk factors for individual subtypes. Higher body mass index (BMI) as a young adult, occupation as a spray painter, sedentary lifestyle, and high levels of dietary animal protein intake are associated with higher risk of follicular lymphoma. Living on a farm is associated with an increased risk of mantle cell lymphoma. Sjögren's syndrome, systemic lupus erythematosus, and tobacco smoking for more than 40 years are linked to an increased risk of Waldenstrom macroglobulinemia.
Indolent lymphoma
Aggressive lymphoma
Gray zone lymphoma
Follicular lymphoma
Nodular lymphocyte predominant Hodgkin lymphoma
AIDS-related lymphoma
Mixed-cell lymphoma
Hodgkin lymphoma