Abstract: Objective To understand the epidemic trends of sexually transmitted diseases(STDs) in Longgang District of Shenzhen, and provide scientific reference for control and prevention policy by the government. Methods The trends of STDs from 2008 to 2017 in Longgang district and annual percent changes were analyzed by joinpoint regression program．Results The incidence of STDs in Longgang district decreased with an APC of 15.0% from 2008 to 2010 and reached the lowest point in 2010. The incidence of STDs in Longgang district increased with an APC of 10.0% from 2010 to 2013 and then declined with an APC of 1.0% from 2013 to 2017 but either is significant. From 2008 to 2017, the APC of gonorrhea was 3.0%, syphilis was 5.6%, condyloma acuminatum was -3.6%, genital herpes was -12.2%, and chlamydia trachomatis was 1.3%. The proportion of chlamydia trachomatis was the highest, others were syphilis, gonorrhea, condyloma acuminate and genital herpes in Longgang district from 2008 to 2017. The proportion of STDs cases aged between 20 and 29 years was the highest and then followed by 30-39 years group. The proportion of STDs cases aged more than 50 years increased year by year. Conclusion STDs incidence was stable in Longgang district. Control and prevention strategy targeted STDs should be developed and implemented according to own characteristics.

Key words: Sexually transmitted diseases, Annual percent change(APC), Trend test