The Nyanza Reproductive Health Society (NRHS) is active in conducting reproductive health and HIV prevention research and services throughout Nyanza Province in Kenya.

NRHS is comprised of four main projects: The University of Nairobi, Illinois, and Manatoba project (UNIM), Partners in Reproductive Health (PIRH), Kisumu Initiative for Positive Empowerment (KIPE), and the Male Circumcision Program (MC). Currently, UNIM serves as a reproductive health clinic for young men and women in the community, PIRH provides voluntary counseling and testing for HIV, behavioral change counseling, and community education and mobilization, and KIPE provides people living with HIV/AIDS group and individual counseling, care for opportunistic infections, and income generating activities.

Most recently, NRHS has been instrumental in the expansion of male circumcision services in Kenya. In 2007, the results of the UNIM trial reported that circumcised men have approximately 60% less chance of acquiring HIV than men who are uncircumcised.