Sexually Transmitted Diseases (STD) | Mass.gov

Sexually transmitted diseases (STDs) are infections which are generally passed from one person to another through sexual contact. STDs are caused by bacteria, parasites, yeast, and viruses. There are more than 20 types of STDs. Some common STDs are chlamydia, genital herpes, and genital warts (HPV).

STD information for the public

STD information for healthcare and public health professionals

STD treatment guidelines and clinical advisories

STD data and reports

Contact Information

Phone

Partner Services Program (PSP)

Image credits: Syphilis bacterium. Treponema pallidum (Shutterstock)

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