Fibroids may increase risk of preterm labor, abnormal fetal presentation, placenta previa, and recurrent spontaneous abortions. Rarely, fibroids partially obstruct the birth canal.

Preconception evaluation is recommended for women who have very large fibroids or who have fibroids and have had a spontaneous abortion.

Last full review/revision December 2008 by Sean C. Blackwell, MD

Content last modified February 2012