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Sexually Transmitted Infections

Sexually transmitted infections (STIs) are also known as sexually transmitted diseases (STDs). These infectious diseases are passed from person to person through oral, anal and vaginal sexual contact, skin-to-skin genital contact, and/or sharing sex toys.

STIs are grouped into three main categories:

Signs that can occur with STIs include:

STIs are a serious health concern. Many STIs show no obvious signs or symptoms and can go unnoticed and untreated. If left untreated, STIs can lead to serious long-term health problems such as infertility (the inability to have a baby), certain forms of cancer and even death. 
  • Unusual discharge from penis or vagina
  • Pain or irritation when urinating or during sex
  • Difficultly urinating 
  • Sores, blisters, ulcers, warts, lumps or rashes anywhere near the genitals or anus
  • Itchiness or irritation in the genital or anal area
  • Vaginal bleeding after sex

Often there are no obvious signs of infection. If you are sexually active, you should see a doctor or nurse practitioner right away for sexual health screening.
The good news

  • Most STIs can be cured.
  • The STIs that cannot be cured can now be well managed.

Learn more about STIs:

Use a condom
Talk to your partner
Get Tested
Know your risks!

Where can I find help?
Top 10 questions

Updated Jul 11, 2017