108 patients, ASA physical status 1, 2 or 3, scheduled to undergo for surgery of male infertility, were enrolled. They were randomly divided into two groups: LMA (general anesthesia with laryngeal mask airway (LMA), used size No3 or No4) and spinal anesthesia (spinal anesthesia used Bupivacaine heavy 0.5% 10 - 12 mg).