Acute idiopathic scrotal oedema: four cases and a short review.

We report four cases of acute idiopathic scrotal oedema, an underreported cause of acute painless or moderately painfull swelling and erythema of the scrotum in young boys. It is a self-limiting disease and to prevent unnecessary surgical exploration or antibiotic therapy, it is very important to distinguish acute idiopathic scrotal oedema from more serious diseases.