Stay cool! Special underwear for cyclic cooling significantly decreases scrotal skin temperature.

Introduction: Male reproductive health is rapidly declining during the past decades and it is well known that scrotal temperature is linked to male infertility.

Material And Methods: We performed a prospective data evaluation within a counterfactual analysis study design. Scrotal cooling was performed using Snowballs™ underwear, scrotal temperature was monitored using a wireless temperature sensor (SensorPush, Brooklyn, NY, 11215).