Keypoints

Non-Hodgkin's lymphoma can affect people of all ages, but is more common in older people
While both sexes can develop the disease, it is more likely to affect men
Although the number of new cases every years is rising, the reason is not known, and it is usually unclear why someone developed the disease

Introduction

Non-Hodgkin's lymphoma can occur in people of any age. However, almost all types of the disease are more common in older people, resulting in an average age at the time of diagnosis of 65 years. Non-Hodgkin's lymphoma occurs in both sexes, but it is significantly more common in men than in women.

*Non-Hodgkin's lymphoma can affect almost anyone, although it is more common in older people and more likely to affect men rather than women*

In the developed world (such as Europe, North America and Australasia), the incidence of lymphoma has been slowly rising over the past 50 years or so. However, the reasons for this increase are not known. Indeed, although some causes and risk factors for non-Hodgkin's lymphoma have been identified, there is no known cause in most cases of the disease.

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