Age is a risk factor for developing lymphoma, but the risk varies depending on the type. There are two main types of lymphoma: Hodgkin lymphoma and non-Hodgkin lymphoma. The difference between them is the type of lymphocyte that is affected. Hodgkin lymphoma tends to affect people between 20 to 30 years old, while most people with non-Hodgkin lymphoma are older than 55 at diagnosis.
Gender can also play a role. Research shows that some types of lymphoma are more common in men. Experts are not certain why men are more susceptible to this type of cancer, but they believe it may have to do with reproductive hormones, environmental exposure, and body size.

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