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Chlamydia During Pregnancy 

How Do You Get Chlamydia?

Chlamydia is a bacterial infection that is spread through vaginal, oral, or anal sex. 

What are the Symptoms of Chlamydia?

3 out of 4 infected women have no symptoms.  Symptoms may include painful urination, painful sexual intercourse, and vaginal discharge in women. Men may experience painful urination as well as a discharge from the penis .
Chlamydia can cause permanent damage to a woman's reproductive organs if not treated

Effects on Pregnancy

Women who have untreated Chlamydia during pregnancy are more likely to have  of preterm birth. Chlamydia can be passed from an infected mother to her baby during vaginal delivery causing an eye infection or pneumonia in her baby.

The Centers for Disease Control and Prevention (CDC)  recommends that all pregnant women be screened for Chlamydia at their first prenatal visit. Women aged ≤25 years and those at increased risk for Chlamydia (e.g., women who have a new or more than one sex partner) also should be retested during the third trimester .

Treatment of Chlamydia During Pregnancy

If you have been diagnosed with Chlamydia during pregnancy the CDC recommends treatment with one of the following.

Recommended Regimens

Azithromycin 1 g orally in a single dose


Amoxicillin 500 mg orally three times a day for 7 days

Alternative Regimens

Erythromycin base 500 mg orally four times a day for 7 days


Erythromycin base 250 mg orally four times a day for 14 days


Erythromycin ethylsuccinate 800 mg orally four times a day for 7 days


Erythromycin ethylsuccinate 400 mg orally four times a day for 14 days


Your partner should be treated at the same time as you are treated.  Neither of you should have sex until a week after you have completed treatment . You should also refer anyone for possible treatment who you have had sexual contact with during the 60 days before your symptoms began or you were diagnosed with Chlamydia.

The CDC recommends repeat testing to document Chlamydia has been eliminated (preferably by NAAT) 3 weeks after completion of therapy  for all pregnant women. Pregnant women diagnosed with a Chlamydia infection during the first trimester should also be retested 3 months after treatment..


Have  sex only with one partner who has sex only with you.
Use latex condoms during intercourse and a  dental dam during oral sex.

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2. Pregnancy outcomes in women infected with Chlamydia trachomatis: a population-based cohort study in Washington State.
Blas MM, Canchihuaman FA, Alva IE, Hawes SE.Sex Transm Infect. 2007 Jul;83(4):314-8. Epub 2007 Mar 7.PMID: 17344249
3. Sexually transmitted diseases treatment guidelines, 2010. Workowski KA, Berman S; Centers for Disease Control and Prevention (CDC). MMWR Recomm Rep. 2010 Dec 17;59(RR-12):1-110. PMID: 21160459



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