ANATOMY

Detailed explanation-1: -Swollen lymph nodes usually occur as a result of infection from bacteria or viruses. Rarely, swollen lymph nodes are caused by cancer. Your lymph nodes, also called lymph glands, play a vital role in your body’s ability to fight off infections.

Detailed explanation-2: -Lymph allows white blood cells (lymphocytes) to circulate. When white blood cells multiply abnormally, they cause masses to form and lymph nodes become enlarged. Some lymphomas may affect the bone marrow and interfere with its making of blood cells. The result is anemia, or low red blood cell count.

Detailed explanation-3: -Your lymph nodes get larger when more blood cells come to fight off an invading infection. They all essentially pile in, causing pressure and swelling. Often, the lymph nodes that swell will be close to the infection’s site. That means if you have strep throat, you may develop swollen lymph nodes in your neck.

Detailed explanation-4: -Signs to Watch For You should see a doctor if you have swollen lymph nodes but don’t have any obvious illness. This is especially important if your lymph nodes feel hard to the touch, and that feeling doesn’t go away after two weeks or so.

Detailed explanation-5: -A small bean-shaped structure that is part of the body’s immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease.