Swollen lymph nodes

Swollen, painful, and/or tender lymph nodes are a common occurrence in ME/CFS.

Prevalence

 * 57.7% - 67.9% of the 2073 patients in a Belgian study of 2001 reported swollen/tender lymph nodes.
 * Katrina Berne reports a prevalence of 50-80% for painful and/or swollen lymph nodes.

Symptom recognition

 * In the Canadian Consensus Criteria, tender lymph nodes are an optional criteria for diagnosis, under the section Immune Manifestations.