Fibroids Uterine Fibroids Uterine fibroids are benign uterine tumors of smooth muscle origin. Fibroids frequently cause abnormal uterine bleeding, pelvic pain and pressure, urinary and intestinal symptoms, and pregnancy... read more 
may increase risk of
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.
