Since the cause of uterine fibroids is not yet known, no way is known to prevent them.
Fibroids can make it difficult to conceive a baby. During pregnancy, a fibroid can cause a miscarriage or difficulty with delivery. A fibroid can also become twisted and need emergency surgery. Although rare, it is possible for a fibroid to become cancerous.
Fibroids are not contagious. A fibroid may pose a risk to the fetus during pregnancy.