What are STIs/STDs?

Sexually transmitted infections (STIs), also known as sexually transmitted disease (STDs), are very common. Millions of new infections occur every year in the United States.

STDs pass from one person to another through vaginal, oral, and anal sex. They also can spread through intimate physical contact like heavy petting, though this is not very common.

STDs don't always cause symptoms or may only cause mild symptoms. Therefore, it is possible to have an infection and not know it. That is why getting an STD test is important if you are having sex. If you receive a positive STD diagnosis, know that all are treatable with medicine and some are curable entirely.

STDs are preventable. If you have sex, know how to protect yourself and your sex partner(s) from STDs.

DCHD Sexual Health Services:

  • Counseling for HIV (human immunodeficiency virus)
  • Testing for STIs
  • Treatment for STIs

STI/HIV clinic walk-In hours available:
Wednesdays 10 a.m. – 2 p.m.
151 W. 5th Street
Chester, PA

*STI/HIV Health Services will be available at the Delaware County Wellness Center beginning July 22, 2022.

For more information or to schedule an appointment:
Phone: (484) 276-2100
Email: DelcoWellness@co.delaware.pa.us

Additional Resources from the CDC:

Types of STD's

How You Can Prevent Sexually Transmitted Diseases

STDs and HIV – CDC Fact Sheet

Information for Teens and Young Adults: Staying Healthy and Preventing STDs - CDC Fact Sheet

STD Testing: Information for Parents of Adolescents

How to talk to a doctor about STD Testing



For more information and assistance, the Delaware County Health Department Wellness Line is available Monday through Friday, from 8:30 a.m. to 4:30 p.m. In addition to responding to phone calls, the Wellness Line also responds to email inquiries.

Phone: (484) 276-2100
Email:DelcoWellness@co.delaware.pa.us



Contact Us

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         Media, PA 19063
  •   8:30AM - 4:30PM
           Monday - Friday
  •   610-891-4000
  • webmaster@co.delaware.pa.us

About Delaware County

Delaware County, presently consisting of over 184 square miles divided into forty-nine municipalities is the oldest settled section of Pennsylvania.


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