CRISTINA PEDRAZZINI / SCIENCE PHOTO LIBRARY CRISTINA PEDRAZZINI / SCIENCE PHOTO LIBRARY
Groin pain. Nude man holding his hands over his painful groin. Pain in this area has many causes, including the enlargement of a lymph node due to an infection, a hernia (protrusion of the abdominal contents through a weak area in the abdominal wall), or a groin strain (the over- stretching of muscles in the groin).
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