What Does Lymph Mean? - #1777

Anonymously

I always hear about lymph nodes, but what exactly is lymph? It turns out lymph is a clear fluid that helps fight infections and remove waste from the body. Lymph flows through the lymphatic system, which includes: Lymph nodes – Filter harmful substances. Lymphatic vessels – Transport lymph fluid. Spleen and tonsils – Help fight infections. Swollen lymph nodes usually mean the body is fighting an infection. Has anyone ever had swollen lymph nodes before? What was the cause?

Lymph

Immune system

Lymphatic system

Swollen lymph nodes

Infection

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Doctors’ responses

Dr. Evgeny Arsentev

I am a highly qualified medical professional with over 15 years of experience in General Medicine. My expertise spans diagnosing and treating a wide range of conditions, providing evidence-based care, and mentoring junior doctors. I am dedicated to ensuring patient well-being through a combination of clinical skills and compassionate care.

61 days ago

Lymph is a clear fluid that plays a key role in your immune system, helping to fight infections and remove waste from tissues. It circulates through lymphatic vessels, passing through lymph nodes, which act as filters for harmful substances like bacteria and viruses.

Swollen lymph nodes are usually a sign that the body is fighting an infection, such as a cold, flu, or strep throat. In some cases, persistent or painless swelling may indicate a more serious condition like autoimmune diseases or lymphoma.

If you notice swollen lymph nodes that last more than two weeks, are very large, or come with unexplained weight loss or fever, it's best to see a doctor. A blood test or imaging like an ultrasound can help determine the cause.

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