Lymph nodes are vital for fighting germs and illness, often swelling during infections as they trap and eliminate pathogens. This swelling usually indicates a healthy immune response. However, persistent or painful swelling in the neck may signal a more serious issue.
See a doctor if swelling lasts over two weeks, comes with fever or weight loss, or if lymph nodes grow rapidly, harden, or appear in multiple areas. Diagnosis may involve physical exams, imaging, or biopsies to determine the cause.
Treatment depends on the cause—antibiotics for infections, immune-suppressing drugs for inflammation, or cancer treatments like chemotherapy or surgery if needed. Always consult a doctor for persistent or concerning symptoms.