[Aspermia of epididymal blockage treated with epididymal tubule vasostomy]

To improve curative effect, we performed aspermia of epididymal blockage on 21 patients with epididymal tubule vasostomy using microsurgical technique between 1985 and 1994. In the 21 patients 20 showed sperm, and 18 increased sperm numbers over 4 x 10(7)/ml postoperation. The wives of 12 patients became reproductive. The selection of 3 different anastomotic ways using microsurgical technique could obviously improve curative effect, according to the dilated degree of epididymal tubule. The selection of anastomotic ways and liquid-passed test of deferential dust was also discussed.