Does Herpes Make Your Lymph Nodes Swell?
Medically reviewed by Faith Coleman, University of New Mexico School of Medicine on August 23rd, 2026.
Yes, herpes infections can cause lymph node swelling, particularly in the area of the body near the outbreak. During initial herpes outbreaks, up to 80% of patients experience enlarged lymph nodes as part of their immune system's response to the viral infection. The lymph nodes most affected are typically those closest to the infection site - groin nodes for genital herpes and neck nodes for oral herpes. This swelling usually occurs 2-7 days after symptoms begin and can persist for several weeks. The nodes may feel tender or firm. Swollen lymph nodes are more common during first episodes than recurrent outbreaks, as the body's initial immune response is more intense.
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