On these pages I've put together the results of my own research and experience. You'll also find links to other sources of helpful information. A fibroid is a benign tumor that grows in or on the uterus. Fibroids are the most common tumor of the female reproductive organs. They are often embedded in the wall of the uterus, but they may also be attached to the outside, or to the inner lining.
Fibroids can be any size.
If you have fibroids, your doctor may describe their combined size as it relates to the number of weeks in a pregnancy. And here is a photo , very detailed, showing all three kinds of fibroids. No one really knows what causes fibroids. They appear more often in women over 35, and in women of African heritage. However, women of any age and ethnic background may have fibroids.