What diseases result in enlarged lymph nodes?

Lymph nodes can become enlarged due to a variety of underlying conditions. Some common diseases that may result in enlarged lymph nodes include:

1. Infections: Viral and bacterial infections, such as the common cold, flu, tonsillitis, strep throat, and mononucleosis, can cause lymph nodes to swell as part of the body's immune response.

2. Immune System Disorders: Conditions like lupus, rheumatoid arthritis, and Sjogren's syndrome, which are characterized by an overactive immune system, can lead to swollen lymph nodes.

3. Cancer: Lymph nodes can become enlarged due to the presence of cancerous cells. Cancers that commonly cause swollen lymph nodes include lymphoma, leukemia, breast cancer, lung cancer, and skin cancers.

4. Tuberculosis (TB): This bacterial infection can cause persistent enlargement of lymph nodes, particularly in the neck, underarms, and groin areas.

5. Sexually Transmitted Infections (STIs): Certain STIs like syphilis and HIV/AIDS can lead to swollen lymph nodes, especially in the groin area.

6. Cytomegalovirus (CMV): This common virus can cause enlarged lymph nodes in some individuals.

7. Toxoplasmosis: This infection, caused by a parasite, can cause lymph node enlargement, particularly in people with weakened immune systems.

8. Hodgkin's Disease: This type of cancer originates in the lymphatic system, leading to the enlargement of lymph nodes.

9. Non-Hodgkin's Lymphoma: This group of cancers that affects the lymphatic system can also cause lymph nodes to enlarge.

10. Kawasaki Disease: This rare condition, mostly seen in children, involves inflammation of blood vessels and can lead to swollen lymph nodes.

11. Cat Scratch Disease: This bacterial infection, acquired from contact with cats, can cause enlarged lymph nodes in the armpits or neck.

12. Fifth Disease (Parvovirus B19): This common viral infection, often characterized by a rash, can also cause swelling of lymph nodes.

13. Rubella (German Measles): This viral infection can lead to swollen lymph nodes, along with other symptoms such as fever and a rash.

14. Chickenpox: The varicella-zoster virus, which causes chickenpox, can also cause enlargement of lymph nodes.

It's important to note that not all enlarged lymph nodes indicate a serious medical condition. If you notice persistent or significant swelling of lymph nodes, it is advisable to consult a healthcare professional for evaluation and appropriate diagnosis.