The year 2002 was marked by the creation of Lymphoma Coalition uniting 57 organizations around the world. 2 years later, it put forward an initiative to have this holiday aimed at informing on malignant diseases of the lymphatic system, its symptoms, early diagnosis and prevention. Annually, on September 15, members of the Society of Lymphoma Patients, which was founded in September 2003 in Europe and currently has more than 7,000 members (residents of Europe, Asia, Australia, North and South America), medical community, relatives and friends of patients, patients who have recovered from malignant lymphomas, celebrate World Lymphoma Day since 2004.

In recent years, there is an increase in the incidence of malignant lymphomas from 1.1 in 2015 to 2.6 per 100 thousand population in 2018. i.e. almost 2.5 times per year in Uzbekistan. The absolute number of newly diagnosed patients ranges from 800 to 1000 per year. 48% of non-Hodgkin's lymphomas are detected at 3-4 stages. Hodgkin's lymphomas are detected approximately in the same range — 41%. At the same time, the 5-year survival rate is also a concern — non-Hodgkin's lymphomas — 54.9%, and Hodgkin's lymphoma — 41.3%. Although Hodgkin's lymphoma is cured at any stage in 80-95% of cases with the right treatment, and the long-term disease-free survival is possible in 70-80% of cases of non-Hodgkin's lymphoma, depending on the immunohistochemical parameters of the tumor.

Patients' chances of recovery depend entirely on accurate and timely diagnosis of the disease. Timely detection and quality therapy provide recovery from lymphoma in 80% of cases, and current technologies can completely cure or significantly improve the quality of life of patients with lymphoma.