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Causes and Risk Factors

  • The exact causes of pre-term labor are unknown, but some possible factors include:
    • Infection or inflammation of the genital tract, such as bacterial vaginosis, chorioamnionitis, or urinary tract infection
    • Multiple gestation, such as twins or triplets
    • Placental abnormalities, such as placenta previa or abruption
    • Uterine anomalies, such as fibroids or septum

      • Cervical insufficiency, which is the inability of the cervix to remain closed during pregnancy
      • History of pre-term birth or cervical surgery
      • Maternal age less than 18 or more than 35 years
      • Maternal medical conditions, such as diabetes, hypertension, preeclampsia, or anemia
      • Maternal lifestyle factors, such as smoking, alcohol use, drug abuse, or stress

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      • Fetal factors, such as congenital anomalies, intrauterine growth restriction, or fetal distress

Questions on Causes and Risk Factors

Correct Answer is C

Explanation

None

Correct Answer is A

Explanation

Syphilis is wrong because it is a bacterial infection that can cause congenital syphilis if transmitted during pregnancy, but it does not increase the risk of preterm labor. Syphilis can cause serious complications such as stillbirth, neonatal death, or neurologic damage.

Correct Answer is C

Explanation

Cervical funneling is not a finding that can indicate cervical insufficiency by itself, but rather a complication that can result from it. Cervical funneling is when the internal os (the opening of the cervix inside the uterus) widens while the external os (the opening of the cervix outside the uter

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