Androgens are hormones produced by the leydig cells or institial cells of testis. The androgens perform the following function :

1. It regulates the developement , maturationand functions of the male accessory sex organs like epidydimis, vas deferens etc. 

2. It regulates muscular growth, growth of facial hair.

3. It plays an important role in the stimulation of the process of spematogenesis.