Sistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSPROSENBLATT, AlbertoFAINTUCH, JoelCECCONELLO, Ivan2015-12-102015-12-102015OBESITY SURGERY, v.25, n.7, p.1281-1292, 20150960-8923https://observatorio.fm.usp.br/handle/OPI/12384Young males represent one of the populations with the steepest increases in the incidence of obesity. They are also prone to significant derangements in sexual health and fertility. Despite a growing number of reports about female reproductive health, in the setting of bariatric surgery, males have received much less attention. In the current review of reproductive abnormalities in severe obese males before and after bariatric surgery, erectile function, hypothalamic-pituitary-gonadal axis status, sex hormones, semen quality, fertility and assisted reproductive techniques, along with analysis of adipokines, gut hormones, and environmental factors are addressed. Available evidence about weight loss benefits, both medical and surgical, are highlighted, along with perspectives for future investigations, which may be relevant for the patient, for the couple, and for the community alike.engrestrictedAccessReproductive functionFertilityFecundityBariatric surgeryObese malesSemenSexual functionbody-mass indexin-vitro fertilizationhormone-binding globulinobstructive sleep-apneagastric bypass-surgeryreduced semen qualityhuman seminal plasmasperm dna integrityerectile dysfunctionmetabolic syndromearticleCopyright SPRINGER10.1007/s11695-015-1663-1Surgery1708-0428