What kind of infection cause swollen lymph nodes?

Lymph nodes are small, bean-shaped organs located throughout the body that help fight infection. They can become swollen when they are working to filter out bacteria, viruses, and other harmful substances from the body. Some of the infections that can cause swollen lymph nodes include:

* Bacterial infections, such as:

* Strep throat

* Tonsillitis

* Scarlet fever

* Bacterial pneumonia

* Skin infections (such as cellulitis)

* Urinary tract infections

* Sexually transmitted infections (STIs)

* Tuberculosis

* Viral infections, such as:

* Mononucleosis

* Measles

* Mumps

* Rubella

* Chickenpox

* Fifth disease

* HIV

* Fungal infections, such as:

* Histoplasmosis

* Coccidioidomycosis

* Blastomycosis

* Parasitic infections, such as:

* Toxoplasmosis

* Malaria

* Leishmaniasis

* Chagas disease

In some cases, swollen lymph nodes can also be a sign of cancer, such as lymphoma or leukemia. If you have swollen lymph nodes that do not go away within a few weeks, it is important to see your doctor to determine the cause.

Here are some tips for preventing infections that can cause swollen lymph nodes:

* Wash your hands frequently with soap and water.

* Avoid contact with people who are sick.

* Get vaccinated against preventable infections.

* Practice safe sex.

* Keep your home and work environment clean.

* Eat a healthy diet to boost your immune system.