What you mentioned as lymphatic cancer should refer to lymphoma.

The causative factors of lymphoma have not been fully elucidated to date. It is a disease characterized by abnormal differentiation and proliferation, which occurs when immune - active cells at different stages are transformed or the body's regulatory mechanisms are disrupted under the combined action of internal and external factors.

It is commonly believed that the occurrence of lymphoma is related to several major factors such as immune dysfunction, infectious factors, and genetic factors.

Among them, the infectious factors that have been more extensively studied are associated with Epstein - Barr virus (EBV) infection, human T - cell lymphotropic virus type 1 (HTLV - 1), human herpesvirus, hepatitis C virus, bacterial infections, chlamydia infections, etc.