Uterine fibroids are the abnormal growths in the uterus of a female. Although these fibroids are unusual growths in the uterus, they are mostly non-cancerous. These fibroids may even grow outside or inside the uterine walls. The size of uterine fibroids can vary from as small as the size of a pea to as big as a grapefruit. There can be single or multiple fibroids in a uterus, depending upon the seriousness of the condition. Uterine fibroids should not be taken casually, they require proper and timely treatment.