As with most other tumors, the cause of slow lymphoma may be related to a variety of factors, such as radiation, chemicals, and poor lifestyle habits (e.g., smoking), but none of them have been confirmed, and the only clear risk factor is genetic. The high incidence of slow gonorrhea in Western countries and the low incidence in China and other Asian countries, and the significant increase in the incidence of slow gonorrhea in people with a family history of slow gonorrhea or other lymphomas, suggest that genetic factors are the main factors in the development of slow gonorrhea. However, slow gonorrhea is not a genetic disease in the traditional sense, and although the chances of children of patients developing slow gonorrhea are significantly higher than those of the general population, the actual incidence is extremely low (less than 1 in 10,000), so there is no need to worry about it. The median age of onset is 65-70 years old, and the ratio of men to women is about 2:1. Patients often do not have any symptoms in the early stage, and are seen by accidental abnormalities in blood tests or other diseases, or by patients who feel a lump on the body surface or abdomen. Some patients mainly present with non-specific symptoms such as weakness, lethargy, excessive sweating (or night sweating), or abdominal distension, abdominal pain, and lack of appetite due to splenomegaly. Some patients are also prone to recurrent infections and fever, or have weight loss, dizziness and other discomforts that are found at the clinic. In short, none of the symptoms of slow gonorrhea are unique to the disease and require testing to determine.