What is the significance of tender lymph nodes in children?

• A. They may indicate an infection or inflammation
• B. They always indicate cancer
• C. They are always a normal finding
• D. They indicate dehydration

Answer: (A)

Tender lymph nodes in children usually signal an infection or inflammation happening in the body. When the immune system responds to a viral or bacterial infection, nearby lymph nodes swell as they filter pathogens and coordinate the immune response. The tenderness reflects active inflammation and increased blood flow in the node, which is common with illnesses like colds, pharyngitis, ear infections, dental infections, or mononucleosis. These nodes often feel soft to firm, mobile, and decrease in size as the illness resolves.

This is why cancer is not the best fit: cancerous lymph nodes in kids are more typically hard, non-tender, and may be fixed to surrounding tissues rather than painful and freely movable. Dehydration does not cause tender lymphadenopathy, so that option doesn’t fit the usual pattern. If a tender node persists, becomes hard or fixed, or is accompanied by systemic symptoms (fever, night sweats, weight loss), it’s important to seek further evaluation.