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November 22, 2009
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The Cleveland Clinic

Pregnancy: Sexually Transmitted Diseases

Sexually transmitted diseases, commonly called STDs, are infections that are spread by having sex with someone who has an STD. You can get a sexually transmitted disease from sexual activity that involves the mouth, anus or vagina.

STDs are serious illnesses that require treatment, regardless of whether or not you are pregnant. But, when you are pregnant, you are not the only one at risk; many STDs can be especially harmful to you and your baby. Some STDs, like HIV/AIDS, cannot be cured and are deadly.

Your health care provider will likely screen for some STDs at your first prenatal visit, but if you have sex with someone who is infected, you will need to be screened at subsequent appointments and treated. If you suspect you have an STD, be sure to tell your doctor immediately. Fast treatment is the best way to protect you and your baby.

STDs include:

What Are the Symptoms of STDs?

Sometimes, there are no symptoms. If symptoms are present, they may include:

  • Bumps, sores or warts near the mouth, anus, penis or vagina
  • Swelling or redness near the penis or vagina
  • Skin rash
  • Painful urination
  • Weight loss, loose stool, night sweats
  • Aches, pains, fever and chills
  • Yellowing of the skin (jaundice)
  • Discharge from the penis or vagina (vaginal discharge may have an odor)
  • Bleeding from the vagina other than during a monthly period
  • Painful sex
  • Severe itching near the penis or vagina

How Can STDs Affect My Pregnancy?

STDs in pregnancy can harm you and your developing baby.

  • HIV/AIDS: Thanks to the advent of powerful medications, transmission of HIV infection to your infant is almost completely preventable. But, when the disease is passed on, the results are catastrophic -- the baby may develop HIV infection.
  • Herpes: Herpes infection in a pregnant woman is relatively safe until she gets ready to deliver. Active herpes lesions on the genitals are highly contagious and can infect the infant as it's being born. Thus many of these women are delivered by cesarean section.
  • Gonorrhea: Gonorrhea is a very common STD, usually diagnosed by performing a test on a swab of vaginal fluid. If contracted during pregnancy, the infection can cause vaginal discharge, burning while emptying the bladder or abdominal pain. A pregnant woman with untreated gonorrhea has an increased risk of miscarriage or preterm delivery. A baby that is born while the mother has an active infection can develop blindness, joint infection or a life threatening blood infection.
  • HPV (Genital Warts): This is a very common STD. They often appear as small cauliflower like clusters which may burn or itch. If you contract genital warts during pregnancy, treatment may be delayed until after you deliver. Sometimes the hormones from pregnancy can make them grow larger. If they grow large enough to block the birth canal, the baby may need to be delivered by a cesarean section.
  • Chlamydia: Chlamydia may cause an increased risk of miscarriage and preterm delivery. Infants who are exposed can get severe eye infections and pneumonia.
  • Syphilis: Syphilis is most often diagnosed with a blood test, although a syphilitic lesion can also be tested. Syphilis is easily passed on to your unborn child. It is likely to cause a very serious infection to your baby that is often fatal. The infants are often premature. Untreated infants that survive tend to develop problems in multiple organs including the brain, eyes, ears, heart, skin and bones.
  • Hepatitis B: Hepatitis B is a liver infection caused by the hepatitis B virus. If a pregnant woman is infected with hepatitis B, she can transmit the infection to her baby through the placenta. Also, her newborn can become infected. In addition, women with hepatitis B are more likely to have a premature delivery. Luckily, early screening and the more widespread use of the vaccine can prevent infection.
  • Trichomoniasis: Trichomoniasis is an infection that can cause yellow-green vaginal discharge and pain with sex or when emptying the bladder. It can increase the risk of having a preterm baby. Rarely, the new baby can get the infection during delivery and have a fever after birth.


Next: How can I find out if I have an STD? »

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Sexually Transmitted Diseases and Pregnancy (STDs)

What is trichomoniasis and how do you get it?

Trichomoniasis (pronounced trih-kuh-muh-nye-uh-sus), also called "trick," is a sexually transmitted disease (STD). It is caused by a parasite that can be passed from one person to another. The parasite is sexually transmitted through penis-to-vagina intercourse or vulva-to-vulva contact with an infected partner. The vulva is the genital area outside the vagina. Women can get the disease from infected men or women.

While trichomoniasis is usually passed sexually, it may be picked up from contact with damp or moist objects such as towels, wet clothing, or a toilet seat, if the genital area gets in contact with these damp or moist objects.

What are the symptoms of trichomoniasis?

Many women do not have any symptoms, but still have the STD. If women do have symptoms, they usually appear 5 to 28 days after exposure and can include:

  • yellow, green, or ...

Read the Trichomoniasis (Vaginal Infection) article »










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