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Getting tested has more benefits than not knowing if you have HIV or an STD. It is a part of routine health care if you are sexually active.

En español: Información sobre pruebas de VIH y enfermedades de transmisión sexual

Select a tab below to learn more about HIV and STD testing.

Got a provider? Start there.

Most private providers can provide testing for a fee. Health insurance may cover the costs. If you do not have health insurance, ask about fees first. If you are a teen, ask if an explanation of benefits detailing your HIV testing will be sent home to your parents.

The Sexual Health Clinic at Harborview Medical Center

Walk-in clinic hours

If you would like an HIV/STI screening, please call 206-744-3590 to make an appointment. (NOTE: Screenings are for people with no symptoms of acute HIV or STI, and no known exposure to HIV or an STI. However, we will continue to provide testing for people with symptoms and exposures to HIV and STIs).

Interpreters are available.

Monday Tuesday Wednesday Thursday Friday Sat/Sun
7:30 am - 6:00 pm 9:30 am - 6:00 pm 7:30 am - 6:00 pm 7:30 am - 6:00 pm 7:30 am - 6:00 pm Closed

Ninth and Jefferson Building
908 Jefferson St, 11th Floor
Seattle, WA
Phone: 206-744-3590

Public Health Centers (clinics)

The following Public Health Center clinics offer HIV and other STD testing, birth control and services for teens. These clinics accept all forms of insurance. All HIV and STD testing services are low or no cost, based on client's income:

Community-based organizations that provide HIV and STD testing

Download the Who Does What in Seattle-King County list (PDF) of over 100 HIV/AIDS-related agencies and programs. Also available in Spanish.

Most of the following organizations offer both HIV and STD tests. Some offer incentives for testing. Click on the agency name in the left column for contact details. Days and times may change. Please call to confirm when testing is available.

Agency Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Center for Multicultural Health
Offering at-home HIV test kits and in office testing for African-born immigrants or foreign-born Black individuals. Call 206-461-6910 for test kit delivery or questions.
Community Health Centers
Varies by clinic. See link for more info.
Entre Hermanos
HIV/STI testing; Hepatitis C testing available for eligible clients. Appointments are preferred, but walk-ins are also acceptable. Call to schedule a test: 206-322-7700 or 206-274-9956.Spanish speakers available.
Mexican Consulate
HIV test and STD tests. Latinos.
Spanish speakers available.
Every 1st and 3rd Monday of the month, 9am-12:00pm
Every 2nd and 4th Wednesday of the month, 9am-12:00pm
Gay City: Seattle's LGBTQ Center
Free HIV/STI testing and at-home HIV test kits available for those who qualify. Appointments are preferred, walk-ins are also accepted. Call to schedule a test: 206-860-6969. Spanish speakers available.
Free mailed HIV, gonorrhea and chlamydia tests and condoms kits are available for WA state inhabitants who qualify. Rapid, one minute, in-office HIV tests are also available by appointment. Call 206-957-1600 for tests and kit delivery. Spanish speaker available.
Out of the Closet
HIV testing. Appointments preferred, but walk-ins can be accommodated.
Planned Parenthood
Call to make an appointment. NO walk- ins for HIV/STI testing. See link for more info.
HIV/STI testing. Appointments are available and walk-ins are accepted. Call 206-653-9353 to make an appointment. Spanish speakers available.
Last two Wednesdays of each month from 12pm-5pm. HIV/STI testing for Pacific Islander and Asian Trans communities.
  Phone or Online appointments
  Walk-ins and appointments
........ At-home testing
  Variable schedule

Benefits for you

  • A test can give you peace of mind. It is the only way you can know for sure if you have HIV or an STD.
  • We now have very effective treatments for HIV. They work better the sooner you take them. These medications are available to everyone who needs them in King County, WA.
  • Untreated STDs are leading causes of infertility (inability to make a baby) for both men and women. Untreated HPV can result in certain types of cancer.
  • If you are pregnant, it is vital to get tested for HIV and STDs because medicines can help prevent your baby from getting them.
  • If there is a possibility that your partner has had sex with anyone besides you, you should get tested.

Benefits for your partner

  • If you know you have HIV or STDs, you can protect your partner from getting infected by not having sex or using a condom.
  • If you have HIV or STDs, you can help your partner get tested. If positive, the sooner they get treated, the healthier they will be.

  • HIV and AIDS facts
  • Preguntas frecuentes sobre VIH y SIDA

How long to wait after possible exposure to get tested

STD testing

The time it takes from infection to illness for each STD is different, from days to several weeks. Most STDs show no symptoms at all. Talk to a health care provider to find out what is right for you.

You can be exposed to STDs through skin contact (herpes, syphilis, HPV) or by exchanging body fluids like semen and vaginal fluid (chlamydia, gonorrhea, hepatitis B, and possibly hepatitis C) or by fecal matter (hepatitis A). Condoms work very well at preventing most of these exposures. If you think you have STD symptoms, get tested right away. If someone you have had sex with recently told you they were infected or if someone from Public Health called you about your sex partner testing positive, get tested right away. A health care provider may treat you before test results are back if your partner already tested positive for an STD.


Exposure to HIV is only possible by exchange of body fluids like blood, semen, vaginal fluid, and breast milk. No matter what kind of HIV test you get, there is a short period of time right after infection when the tests won't be able to detect signs of HIV, even if you are infected. This is called a "window period." If you get tested too soon (during the window period), your results may be wrong. How long you must wait depends on the type of test you take. Talk to your doctor.

NOTE: if you think you had an exposure to HIV, ask about PEP (Post Exposure Prophylaxis). Getting PEP within 72 hours of exposure can prevent HIV from establishing itself in your body.

For RNA or 4th generation antigen test

These tests can usually detect HIV within 2 weeks after the infection. RNA/4th generation test are not available for in home use. It is important to see your doctor or health care provider as quickly as you can if you think you have been exposed to HIV. Starting treatment very soon after infection can help one's health. If you think you may have been infected, get tested right away. This is particularly important if you think you have symptoms that might come from acute HIV (fever, fatigue, sore throat, muscle aching, rash).

For antibody testing in a clinic setting

It's best to test three to four weeks after a possible exposure and again at three to six months.

For antibody testing using a home testing kit

Home HIV test kits can give accurate results three months after infection. If a home test is positive, go to your doctor or a clinic right away for second test to confirm the result.

What to do if you test positive


For all STDs, there is treatment. For most STDs, there is a cure.

Some STDs like syphilis and chlamydia are easily cured with treatment. Some STDs like HPV may clear on their own. Others like herpes and HIV can be chronic and ongoing and require regular medical treatment.

  1. Tell your sex partner(s) that you have tested positive. They should get tested immediately. Public Health can help you with these conversations.
  2. If you have to take medication, be sure to take all of it. For example, some gonorrhea has grown resistant to treatment because people are not taking all of their medicine.
  3. Stop having sex until you and your partner(s) are finished with treatment.
  4. Go back to get tested again if symptoms reappear.


HIV treatment and emotions around a diagnosis of HIV can be more complex than other STDs. It's a good idea to think ahead about getting your results. Do you think you'll need extra support? If so, arrange to call a friend, partner, or family member after you get your results. That person might be willing to go with you to your appointment.

If you do test positive, here are some tips on what to do next:

  1. Find any emotional support you need. It may help to talk with family or friends or a professional counselor. Some people need a little time on their own before they start talking about it with others. If you need support, you can get it at:
    • Crisis Connections open 24-hours at 1-866-427-4747
      Crisis Connections connects people in physical, emotional and financial crisis to services that will be of help. They help to reduce immediate emotional distress and defuse crises for individuals, families and the community; to reduce the immediate risk of violence to one's self and others; and to increase the ability of people to access the safety net, particularly for mental and emotional support services. 24-hour Crisis Line: 1-866-427-4747.

    • Seattle Area Support Groups: Weekly support groups for people with HIV and AIDS, Hepatitis C, and substance abuse problems.
  1. Find a healthcare provider. Even if you feel healthy, find a healthcare provider and talk about treatment options or other health issues you may have. Treatments for HIV are easier to take than ever, and there's no reason to wait to get into care. A good place to start is Public Health's One on One Program where you can get initial blood tests and medical advice. Call 206-263-2410.

  2. Tell any previous sex partners. If you think you may have exposed someone to HIV, it's important to let them know. If you feel uneasy about doing this, Public Health can help. A Public Health counselor can be with you when you talk with partners or give you some advice on how to do it yourself. A counselor can also contact your partners for you to explain that a previous sex partner has tested positive for HIV and offer free HIV testing. No information is given about you. All of these services are free. Call 206-263-2410.

Why HIV testing is important to you (posters)

This fact sheet is formatted to be printed as a two sided flyer in color or black and white on letter size paper (8½" x 11"). It is available in Adobe PDF format in these languages:

Learn more about HIV and other STDs

STD resources

HIV resources

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