Chlamydia: Things you should know

You can order self-requested lab tests for chlamydia if you are asymptomatic.

Read the CDC's translated documents on STIs for more information.

If your partner has been diagnosed with chlamydia, you can call our medical advice nurse line or read more about expedited partner therapy for chlamydia.

Testing for sexually transmitted infections

Student Health Services offers complete STI testing services for OSU students. They are always confidential. To schedule appointments, call 541-737-WELL (9355).

Know you are not alone: STIs are sexually transmitted infections that affect people of all ages, backgrounds, and from all walks of life - in the U.S. alone there are about 19 million new cases each year, about half of which occur among youth ages 15-24 years.

Get Yourself Tested

You should get tested for STIs if any of the listed risk factors apply to you:

  • You have unprotected vaginal, anal or oral sex;
  • A condom breaks;
  • Your partner has or has had an STI;
  • You or your partner inject street drugs;
  • You have a new sex partner;
  • You have had more than one partner in the past six months;
  • Your partner has or had sex with another person;
  • You have sex under the influence of drugs and/or alcohol; or
  • You are unable to communicate with your partner about your sexual history and ways to reduce risks.

The CDC (Centers for Disease Control and Prevention) estimates that there are more than 25 STIs (sexually transmitted infections) in existence. Listed here are the eight most common STIs in the United States. Click on a specific STI below to learn more.

Genital HPV Infection



Genital Herpes


Hepatitis B



Where can I get an HIV test?

Testing for HIV is available at Student Health Services. A fee will be charged. Call 541-737-9355 to schedule an appointment.

The tests commonly used to detect HIV infection look for antibodies produced by your body to fight HIV. Most people will develop detectable antibodies within 3 months after infection, the average being 20 days. In rare cases, it can take 6-12 months. If you are concerned that you may have HIV, please get tested again.

Free and anonymous HIV testing is available at the following Corvallis locations:

First Christian Church
602 SW Madison Ave., Room 17
Tuesdays from 1:00 to 4:00 p.m. (Enter from rear of church)

Westminster House
101 NW 23rd St.
Fridays from 10:00 a.m. to 2:00 p.m.

You need not bring anything; testing is completely free and anonymous. The results of the blood test will be available in about 20 minutes.

What is the difference between anonymous and confidential testing?

Anonymous Confidential

No personal information (such as name or Social Security number) is associated with the test result.

You receive no written documentation, but will hear what your result is from the counselor.

May be necessary if you need documentation of your HIV status, such as those entering the military or Peace Corps.

The test result becomes a part of your medical record.

Sources for information on this page: CDC Division of STD Prevention and American Social Health Association.