This document discusses sexually transmitted diseases (STDs) and control programs. It outlines the bacterial, viral, protozoal and fungal agents that cause STDs. The objectives of STD control programs are to educate about risks and prevention, describe clinical presentations, and manage complications. Control strategies include case detection through screening high-risk groups, contact tracing, treatment, health education, and preventing infection and minimizing adverse effects. The national STD control program in India was established in 1949 and operates specialized clinics for diagnosis and treatment across the country. A community health nurse's role includes case finding, managing clinics and follow-up, educating pregnant women, and prevention through education and ensuring treatment completion.