Wednesday, March 20, 2013

fibroids


What is a fibroid? Uterine leiomyoma, commonly known as known as myomas, are benign smooth muscle tumors of the uterus. This is a benign (non-cancerous) tumor that originates from smooth muscle (myometrium) and the accompanying connective tissue of the uterus. Although they are made of the same smooth muscle fibers as the wall of the uterus (myometrium), they are often denser than normal myometrium. Uterine fibroids are usually round or semi-circular shape. They occur most frequently in the female reproductive system cancer, fibroids occur in 20-25% of all women and it is estimated that 40% of women during menstruation, which are more than 50 years, appearing in size from as small as a pea big as a melon. In addition, fibroids twice as common in women in black or white or Asian women. Uterine fibroids can occur at any time between menarche and menopause, but is most common in women 35-49 years of age. You decide usually after menopause. Although the majority of cancer are asymptomatic, they can grow and cause heavy and painful menstruation, painful sexual intercourse, and urinary frequency and urgency. Some fibroids may prevent pregnancy, although it seems to be very rare. Uterine fibroids are often described based on their location in the uterus.
Submucosal fibroids are the least common. Since they are located in the submucosa and around the uterus, they are associated with severe and prolonged menstrual periods and increased speed miscarriage. Pedunculated submucosal fibroids can and can prolapse into the cervix.
Internal fibroids grow in the wall of the uterus. Their growth can be associated with weight-related symptoms such as bloating, by weight or frequent urination due to bladder contraction.
Subserosal fibroids develop in the outer portion of the uterus. You can be pursued potentially grow into the abdominal cavity or in the ligaments of the uterus, and are associated with the bladder and abdominal compression
What is the cause of fibroids? The exact cause of fibroids is unknown. However, certain predisposing factors have been suggested as:
Genetic abnormalities,
Changes in growth factor (proteins formed in the body that direct the rate and extent of cell proliferation) expression
Abnormalities in the vascular (blood vessel) system,
Tissue response to injury
Family history is an important factor, as is often the history of fibroids developing in women of the same family.
Race seems to play a role. Women of African descent are two to three times more likely to develop fibroids than women of other races too.
Fibroids are not observed in girls who have not reached puberty, but adolescent girls may rarely develop fibroids.
Other factors that researchers have an increased risk of developing fibroids include, first menstruation (menarche) at the age of 10, alcohol (especially beer), uterine infections and high blood pressure (hypertension).
Estrogen tends to stimulate the growth of fibroids in many cases. During the first trimester of pregnancy, will increase to 30% of the fibroid and then shrink after childbirth. In general, fibroids tend to shrink after menopause, but postmenopausal hormone therapy may cause symptoms persist.
In general, these tumors are relatively common and occur in up to 50% of women. Most of the time were, fibroids cause no symptoms or problems, and a woman with fibroids are usually not aware of their presence.