Bacterial vaginosis and miscarriage
Bacterial vaginosis (BV) is an infection caused when too much of certain bacteria change the normal balance of bacteria in the vagina.
Many women with BV do not have symptoms. If you do have symptoms, you may notice a thin white or gray vaginal discharge, odor, pain, itching, or burning in the vagina. Some women have a strong fish-like odor, especially after sex. You may also have burning when urinating; itching around the outside of the vagina, or both.
The presence of bacterial vaginosis or BV during the first trimester of pregnancy doubles the likelihood of a miscarriage by the end of the second trimester, researchers report.
Women with the highest level of vaginal bacteria were 2.49-times more likely to have a pregnancy loss by 20 weeks’ gestation than those with the lowest levels.
The U.S Centers for Disease Control and Prevention (CDC) advises that all pregnant women with symptoms of bacterial vaginosis be screened and treated. The CDC also supports screening women who have had a previous preterm labor. Screening for BV is left up to your healthcare provider to decide.
Treatment is highly recommended to avoid any chance of preterm labor. There are various treatments which include:
Oral medications – Clindamycin 300 mg or Metronidazole 500 mg twice daily for 7 days
Topical medications – Clindamycin 5 g or Metronidazole at bedtime for 5 days (This treatment may give symptomatic relief, but it is insufficient in preventing pregnancy complications.)
Don't douche. Douching removes some of the normal bacteria in the vagina that protects you from infection. This may raise your risk of BV. It may also make it easier to get BV again after treatment.