The fertility potential could be alterated by differents aspects that sometimes are not well studied; many surgical diseases and also medical diseases are associated with a lower fertility potential; recently the association between obesity and andormal fertility is studied by different groups in adulthood. Our Group is the first that with a multidisciplinary team with different experts in different fields (varicocele, cryptorchidism, hypospdias, penile malformations, obesity and trauma)that try to offer to the pediatric patients the best approach to preserve the fertility potential. All aspects, diagnostic, and operative aspects are studied; recently with surgery 2.0 our goal was to study also other aspects of surgery that could affect the fertility potential such as the ergonomy during surgery and the risk managemnt to avoid complications (such as the study of pneumoperitoneum and the basculation during varicocelectomy to avoid recurrences)