 They seem to start slightly earlier than what we thought because they start very small and then they can grow very large. These tumors can range anywhere between the size of a raisin to the size of a watermelon. It's important to raise awareness for fibroids because even though many fibroids are not symptomatic, most fibroids are symptomatic and they can be hellishly symptomatic because patients can get symptoms where they have life-threatening anemia.