Why Do My Lymph Nodes Swell Up Behind My Knee?
1. Introduction Lymph nodes swelling behind the knee, clinically known as popliteal lymphadenopathy, usually occurs as a localized immune response to an infection, severe skin injury, or inflammatory joint condition in the lower leg or foot. The popliteal fossa contains a small cluster of deep lymph nodes responsible for filtering lymphatic fluid returning from the … Read more