Is lymphoma contagious?

Written by Peng Li Bo

Oncology

Updated on February 21, 2025

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Lymphoma is not contagious, as it is not an infectious disease but a tumoral disease. Therefore, it is not contagious, and when seeking medical treatment for lymphoma, patients do not go to the department of infectious diseases. Typically, treatment is conducted in the oncology department or in the hematology department specializing in lymphoma. Thus, lymphoma is not contagious because it is not caused by an infectious pathogen. It is a solid tumor that is tangible and visible.

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Written by Liu Liang

Oncology

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Early symptoms of lymphoma

The early symptoms of lymphoma patients are primarily due to its predilection for lymph nodes, with the majority of cases initially presenting with swollen lymph nodes in the neck or collarbone area. These lymph nodes usually enlarge progressively without pain, which is the most common early clinical symptom. However, some specific types of lymphoma, such as nasal NKT lymphoma, present with localized symptoms like nasal congestion, nosebleeds, or a runny nose. There are also lymphomas originating in the stomach, part of the digestive tract, whose symptoms include upper abdominal pain, nausea, or vomiting. Furthermore, some lymphomas originate in the skin, manifesting as skin nodules. Therefore, depending on the site of occurrence, the symptoms can vary, but the enlargement of superficial lymph nodes remains the primary clinical manifestation in most cases.

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Oncology

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Lymphoma fever symptoms

Patients with lymphoma commonly exhibit symptoms such as fever, clinically referred to as B symptoms. Some patients may also experience additional B symptoms such as fatigue, sweating, or weight loss. Patients displaying these B symptoms generally have a poorer prognosis. Furthermore, lymphoma patients typically experience fever more frequently in the afternoon or evening, usually presenting with a low-grade fever. If the condition of a lymphoma patient is not controlled, their fever symptoms will recur repeatedly. Only when the condition is under control will there be an alleviation of fever symptoms. Anti-inflammatory drugs are not effective in these cases.

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Written by Liu Liang

Oncology

56sec

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What are the symptoms of lymphoma?

The symptoms of lymphoma predominantly start with painless enlargement of superficial lymph nodes, most commonly in areas such as the neck, supraclavicular lymph nodes, armpits, or groin. Additionally, patients with nasal NKT lymphoma might experience nasal congestion, nosebleeds, and rhinorrhea. Lymphomas occurring in the stomach, for example, present symptoms like nausea, vomiting, and even rectal bleeding which are related to the gastrointestinal tract. Therefore, symptoms can vary depending on the location of the lymphoma. Some patients may also experience enlargement of the liver and spleen. In advanced stages of lymphoma, bone marrow involvement is possible, along with common B symptoms including sweating, fever, or weight loss, which are also clinical manifestations seen in lymphoma patients.

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Written by Liu Liang

Oncology

37sec

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How to check for lymphoma?

Patients with lymphoma generally present with painless enlargement of superficial lymph nodes as their initial symptom, most commonly in areas such as the neck, above the collarbone, and the groin. For diagnostic purposes, it is best, if possible, to conduct a whole-body PADCT scan as this helps in the staging of lymphoma at the initial visit. A definitive diagnosis requires the complete excisional biopsy of the affected superficial lymph node, followed by a pathological examination. An excisional biopsy is a method for confirming the diagnosis of lymphoma.

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Written by Liu Liang

Oncology

40sec

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Is lymphoma the same as lymphatic cancer?

Lymphoma refers to a type of malignant tumor that originates in lymph nodes or extranodal tissues or organs. The cancer we usually talk about refers to malignant tumors originating from epithelial tissues, which we call cancer, such as lung cancer, liver cancer, etc. Therefore, lymphoma is actually what non-medical professionals commonly refer to as lymphatic cancer. It is simply called lymphoma instead of cancer because it originates in lymph nodes or extranodal tissues or organs, and therefore, it is termed malignant lymphoma, which in layman's terms is lymphatic cancer.