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Health & Pregnancy

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Understanding STDs in Pregnancy -- Basic Information

How Do STDs Affect Pregnancy?

At your first prenatal visit, your health care provider will perform some standard blood tests. He or she will check for several sexually transmitted diseases (STDs) including syphilis, hepatitis B, gonorrhea, chlamydia, trichomoniasis, and possibly human immunodeficiency virus (HIV), the virus that causes AIDS. Finding out you have an STD can be very frightening. But not knowing, and not getting treatment, can be harmful or even fatal to you or your baby.

The following are some common STDs. If you think you may have been exposed to one or more, or you are unsure, talk with your doctor. He or she is there to help you get the treatment you need during your pregnancy. Remember, even if you are getting treatment for an STD, you can be re-infected by a sexual partner who is not being treated.

Did You Know?

Under the Affordable Care Act, many health insurance plans will cover prenatal services, including screening tests and breastfeeding support, at no cost to you. Learn more.

Health Insurance Center

Protect yourself from STDs by practicing safe sex: Use condoms and spermicides unless you know for sure that you and your partner are disease-free and monogamous.


The number of women with HIV (human immunodeficiency virus) has been steadily increasing worldwide. Women account for approximately 50% of the 33 to 34 million adults living with HIV/AIDS. Most of them were exposed to it from a male sexual partner; the rest became infected through needles, or other exposure to secretions and blood products. If you become infected with HIV, you may have no symptoms for years. Even so, you carry the virus and can infect others, including your baby if you become pregnant. If you become infected, your body soon starts making antibodies against the virus and you become HIV-positive. That means if your blood were tested, you would test positive for the antibody against HIV. Getting tested is the only way to find out if you are infected.

If you are HIV-positive, you may develop AIDS (acquired immunodeficiency syndrome), which includes a variety of conditions that take hold once your immune system is weakened by the virus, such as infections of your lungs and Kaposi's sarcoma, a rare cancer.

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