[Relationship between insulin like hormone 3 and testicular descent and development].

Testicular descent is an essential step in the course of reproductive system development. The mechanisms involved in the regulation of testis descent is not distinct. Gubernaculum has a very close relationship with testis descent. Maldescent of testis can cause abnormalities of genital system such as testicular underwent (cryptorchidism), dysplasia, tumor, infertility and low sexuality. Recently insulin like hormone 3 is a hotspot of concerning affecting gubernacular development and testicular descent. This article briefly reviews the advances in these aspects.