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Uterine Fribroids – Causes and Types

04:49 5th June 2013 | Fibroids:Causes & Types

Abnormal Genes Cell Growth Hormones Oestrogen Progesterone Uterus Submucous Intramural Sudserous Endometrium Lining Endometrial Cavity Uterine Lining

What Causes Fibroids?
The exact cause of fibroids is unknown, but they may be due to the abnormal expression of genes which control cell growth resulting in an abnormal rate of their growth and division. They may also be as a consequence of hormones such as oestrogen and progesterone. It has been noticed that when there is a decrease of these hormone
levels as occurs during the menopause, fibroid symptoms seem to resolve.

Types of Fibroid
Fibroids are characterised according to their location in the uterus. They categorised into submucous, intramural and subserous.
Submucous fibroids grow just underneath the inner lining of the uterus called the endometrium. They may distort the endometrial cavity or be attached by a thin stalk to the uterine lining (pedunculated fibroids) or extend to varying degrees into the muscle layer of the uterus. Intramural fibroids on the other hand grow within the wall of the uterus called the myometrium while Subserous fibroids grow on the outer border of the uterine muscle wall called the serosal surface of the uterus. The location of the fibroids determines the symptoms that may arise from their presence. In the next post I will describe in detail the signs and symptoms associated with the different types of fibroids. Stay tuned….

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