In spite of the common occurrence of uterine fibroids and extensive research carried out in this field, the exact cause of uterine fibroids is still not clear. Certain studies show a combination of genetic and hormonal traits behind the disease.
The exact reasons that are responsible for their growth or reduction are unclear. But there are certain factors that are believed to play a major role in fibroid growth:
Hormonal changes occur mainly due to estrogen and progesterone levels in women. There is a strong association between fibroids and hormones. The hormones levels are higher during pregnancy.
Fibroids reduce in size when anti-hormone medicines are taken. Their size reduces in menopause stage too due to decreased hormone levels.
Most fibroids possess changes in genes which are absent from those in normal muscles of uterus. Some causes could be:
Fibroids usually develop due to multiple factors dependent on one another. As soon as the cause for it is identified, the cure or prevention for it can be done.
In most women, fibroids are observed after puberty. Few lifestyle and environmental factors play a major role in the development of fibroids.
Risk factors for uterine fibroids that result in their growth include:
Early pregnancy has shown to decrease the chances of developing them. Girls who have not reached the age of puberty do not develop fibroids. However, those who have reached adolescence may rarely develop it.
Women with fibroids are more likely to have struggles during pregnancy stage until delivery and should keep the obstetrician informed. Mostly, they do not cause any severe issues during pregnancy. The most commonly observed difficulty is abdominal pain which may be rarely observed with light bleeding. Unless the bleeding is significant, the baby is rarely affected.
Not all uterine fibroids are benign. But the chances that a cancerous fibroid will occur are very rare and this condition is called leiomyosarcoma.