What are Usual Causes of Fibroids?


A fibroid in the uterus starts grow off as a single cell and it is not known precisely what causes a cell to grow into a fibroid tumor. The good news is that fibroids are nearly always harmless, but if you think you have fibroids, it makes sense to have them checked out by your doctor before embarking on any treatment.

So although we might not be able to determine the causes of fibroids precisely, what we do know is that it is likely that fibroids grow as a result of the subtle interaction of various factors which happen to coincide in certain women to spark fibroid growth. Now although these causes won’t be the same in each woman who has fibroids, there are certain common threads which seem to recur.


Estrogen is thought to play a large part in the formation and growth of fibroids. Not every women with high estrogen levels will have fibroids, but most women who have developed fibroids will have elevated estrogen levels.

Your Age

Fibroids are very common in women between 30 and 40, and it is known that they shrink around the time of the menopause when estrogen levels drop

Genetic Factors

Although not proven, there is thought to be a hereditary link-i.e if you have a maternal relative with fibroids, you are slightly more at risk


Afro-Caribbean women are three times more likely to have fibroids

Childbearing Status

Women with no children or those who had their last child at a young age are at a higher risk


Overweight women are more likely to have fibroids and this is thought to relate to the fact that estrogen levels are higher in fat cells than others.

Although women can often look at the above factors and see their own personal trigger factors, for many there are no obvious reasons for fibroid growth and the common causes of fibroids do not seem to apply in their cases.

The lack of clearly identifiable causes can make conventional treatment very difficult as unless the underlying cause of fibroids is removed, fibroids are likely to regrow even following surgery. However, many women have found that natural treatments can work very successfully.