Sexually Transmitted Diseases
View Previous YearsChlamydia, gonorrhea, and syphilis are routinely notifiable diseases and conditions in the city of Philadelphia and should be reported to PDPH within 5 days.
STD Reporting, including Record Requests: Call 215-685-6737 during regular business hours and submit an STD Case Report Form to 215-238-6946.
General STDs
Posting of this data is intended for the sole purpose of promoting the health of Philadelphia residents. Chlamydia, gonorrhea, and syphilis are routinely notifiable diseases and conditions in the city of Philadelphia. The Philadelphia Department of Public Health (PDPH) attempts to post accurate and reliable information but does not guarantee that the surveillance data is complete or up-to-date. PDPH assumes no responsibility for any errors, omissions, or other discrepancies in these electronically posted files. Information from this site may not be copyrighted nor used for commercial purposes.
Chlamydia
Chlamydia is the most commonly reported infectious disease in the city of Philadelphia. Rates of reported chlamydia infection are consistently higher in women than in men and are highest in the 15- to 19-year-old age group. Untreated chlamydia may lead to PID, infertility, and increase the chance of ectopic pregnancy. For more information, visit the chlamydia webpage or Take Control Philly.
The following graphs and tables depict selected aggregate results of PDPH’s chlamydia surveillance.
Tabular Raw Data
Reported case counts by gender and age, 1990-2020
Chlamydia Counts Over Time
Reported cases of chlamydia by age, 1998-2020
Gonorrhea
Gonorrhea is a common STD caused by the bacterium Neisseria gonorrhoeae. Teenagers and young adults are disproportionately affected. As with chlamydia, untreated gonorrhea may lead to PID, infertility, and ectopic pregnancy. For more information, visit the gonorrhea webpage or Take Control Philly.
The following graphs and tables depict selected aggregate results of PDPH's gonorrhea surveillance.
Tabular Raw Data
Reported case counts by gender and age, 1990-2020
Gonorrhea Counts Over Time
Reported cases of gonorrhea by age, 1998-2020
Syphilis
Syphilis is a serious, systemic STD caused by the Treponema palladium bacteria. Syphilis infection is divided into several stages: primary, secondary, early latent (EL), late latent, and congenital. Each stage of syphilis requires different treatment. For more information on syphilis diagnosis and treatment, please call PDPH at (215) 685-6737 or visit the syphilis webpage or Take Control Philly.
The following graphs and tables depict selected aggregate results of PDPH’s syphilis surveillance.
Tabular Raw Data
Reported case counts by gender and age, 1990-2020
Syphilis Counts Over Time
Syphilis cases by stage, 1990-2020
Rates of primary and secondary (P/S) syphilis by gender, 2000-2020
Percentage of male P/S and early latent syphilis as MSM, 1996-2020
Congenital syphilis and positive cord blood, 1997-2020
