Objective:To in vest igate the risk factors related to tubal infertility and to assess the value of m ethods being used to detect the patency of tube.

• 目的：观察引起输卵管性不孕的危险因素并对其诊断方法进行评价，以研究和预防输卵管阻塞引起的不孕，探讨检查输卵管通畅度的方法价值。