IMMUNOLOGY

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: -Lymphadenitis occurs when the glands become enlarged by swelling (inflammation), often in response to bacteria, viruses, or fungi. The swollen glands are usually found near the site of an infection, tumor, or inflammation.

Detailed explanation-3: -The swelling in these pea-or bean-sized lymph nodes are one of your body’s natural reactions to illness or infection. Swollen lymph nodes mean your body’s immune system is working to clear away infection and/or invading viruses or bacteria.

Detailed explanation-4: -When lymph nodes become infected, they usually increase in size, become sore, and may be felt in other areas of your body during a physical exam. Infections that spread to lymph nodes are usually caused by bacteria, a virus, or a fungus.

Detailed explanation-5: -They last for longer than two weeks – Swollen glands caused by an infection will normally go down within two or three weeks (i.e until the infection has been naturally dealt with). Make sure you visit your GP if your lymph nodes don’t seem to be improving within this time or aren’t getting better with antibiotics.

Detailed explanation-6: -Antibiotics given by mouth or injection to fight an infection caused by bacteria. Medicine to control pain and fever. Medicine to reduce swelling. Surgery to drain a lymph node that has filled with pus.