Antenatal marijuana use is unrelated to sexually transmitted infections during pregnancy.

OBJECTIVE This study evaluated the relationship between marijuana use and sexually transmitted diseases in pregnant women. METHODS A retrospective review of clinic records over a 12-1/2 month period identified all women entering prenatal care. Eighty-six women using no illicit substance other than marijuana were compared to 441 drug-free women. The prevalence of gonorrhea, chlamydia, syphilis, human immunodeficiency virus, hepatitis B surface antigen, human papilloma virus, and herpes was ascertained. RESULTS No significant differences were found in the prevalence of any single sexually transmitted disease between pregnant women who used marijuana and drug-free pregnant women. When the presence of one or more sexually transmitted disease was considered, again no difference was found. CONCLUSION Marijuana use was not associated with sexually transmitted disease in pregnant women.