Objective:To investigate the operation skills and long-term effects of the vesiculoscopy and related endoscopic technique on the treatment of ejaculatory duct obstruction(EDO)and severe,persistent hematospermia.Method:Clinical data from 216 patients with persistent and refractory hematospermia or EDO in our hospital from Jan.2009 to May 2015 were retrospectively analyzed.Criteria for inclusion were hematospermia symptoms that lasted more than six months,but did not improve after more than one month of conse...