Swelling in the groin or scrotum could be due to hydroceles, which are harmless. More serious inguinal hernias can result in life-threatening complications.
Groin and scrotal swelling – causes and treatments for children
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Causes, symptoms, diagnosis and treatment of hernias
Hernias occur when organs or other body tissue push through weak or defective parts of your abdominal wall. Getting them treated quickly will prevent unnecessary complications and pain.