@Doeica very important question – well done for asking
Fibroids are a huge concern for women. Fibroids are simply growths in the uterus of a woman of child bearing age (essentially every woman who has reached puberty) but do not lead to cancer. It starts with one cell that grows uncontrollably forming a mass of cells (tissue-like) . There is no known cause of fibroids but scientists think that it is related to hormonal imbalances, genetic (there might be a link with inherited genes).
Hope this has answered your question. Please let me know.