Causes
The cause of fibroids is not known; however, their development seems to be associated with the female hormone, estrogen. Fibroids appear during the childbearing years when a woman’s estrogen levels are high.
The risk factors for a myoma
A number of factors increase the risk of developing a fibroid. Not all people with risk factors will develop a fibroid. Risk factors include:
• Early onset of menses
• High weight or obesity
• No history of giving birth