Risk Factors for Ovarian Cancer
List of Risk Factors for Ovarian Cancer
The list of risk factors mentioned for Ovarian Cancer in various sources includes:
Protective factors:
Certain factors have been mentioned as lowering the risk
of Ovarian Cancer including:
Risk factors discussion:
Ovarian Cancer: NWHIC (Excerpt)
The causes of ovarian cancer are unknown. The disease tends to be more
common in women from western industrialized countries, especially white
women, who have had no full-term pregnancies. There also have been noted
associations with exposure to talc or asbestos. In addition, there is an
association with infertility.
It appears that factors that decrease ovulation have been associated
with a lower risk of ovarian cancer in the general population. Women who
have had multiple pregnancies or who have breast-fed have fewer ovulations
and have been noted to have a decrease in the occurrence of ovarian
cancer. The use of oral contraceptives has also been associated with a
decrease in the development of ovarian cancer. The protection provided by
oral contraceptives appears to be real and increases as the duration of
the pill use increases. A risk reduction of up to 60% may occur when oral
contraceptives are used for longer than five years. Recent studies have
noted that there is a decreased incidence of ovarian cancer in women with
a history of tubal ligation. The mechanism of this is unclear. The use of
powders containing talc should be avoided on the external female
genitals.
(Source: excerpt from Ovarian Cancer: NWHIC)
Ovarian Cancer: NWHIC (Excerpt)
Generally, the risk of developing
ovarian cancer increases as the number of family members affected by
ovarian cancer increases. Having a first-degree relative affected by
ovarian cancer (for example, a mother or a sister) increases a woman’s
lifetime risk from 1.4% to 3.1%. Those at greatest risk for inherited
genetic susceptibility have a personal or family history of ovarian and/or
breast cancer. Histories that include cancers with early age of onset,
multiple primary (new) cancers and Jewish ancestry reflect greater
risk. (Source: excerpt from Ovarian Cancer: NWHIC)
What You Need To Know About Cancer -- An Overview: NCI (Excerpt)
Being seriously overweight may be linked to breast cancer
among older women and to cancers of the prostate, pancreas,
uterus, colon, and ovary. On the other hand, some studies
suggest that foods containing fiber and certain nutrients
may help protect against some types of cancer. (Source: excerpt from What You Need To Know About Cancer -- An Overview: NCI)
What You Need To Know About Ovarian Cancer: NCI (Excerpt)
However,
studies show that the following factors may increase the
chance of developing this disease:
-
Family history. First-degree relatives (mother,
daughter, sister) of a woman who has had ovarian cancer are
at increased risk of developing this type of cancer
themselves. The likelihood is especially high if two or more
first-degree relatives have had the disease. The risk is
somewhat less, but still above average, if other relatives
(grandmother, aunt, cousin) have had ovarian cancer. A
family history of breast or colon cancer is also associated
with an increased risk of developing ovarian cancer.
-
Age. The likelihood of developing ovarian cancer
increases as a woman gets older. Most ovarian cancers occur
in women over the age of 50, with the highest risk in women
over 60.
-
Childbearing. Women who have never had children
are more likely to develop ovarian cancer than women who
have had children. In fact, the more children a woman has
had, the less likely she is to develop ovarian cancer.
-
Personal history. Women who have had breast or
colon cancer may have a greater chance of developing ovarian
cancer than women who have not had breast or colon
cancer.
-
Fertility
drugs . Drugs that cause a woman to ovulate may
slightly increase a woman's chance of developing ovarian
cancer. Researchers are studying this possible
association.
-
Talc. Some studies suggest that women who have
used talc in the genital area for many years may be at
increased risk of developing ovarian cancer.
-
Hormone
replacement therapy (HRT). Some evidence
suggests that women who use HRT after menopause
may have a slightly increased risk of developing ovarian
cancer.
(Source: excerpt from
What You Need To Know About Ovarian Cancer: NCI)
Risks factors for Ovarian Cancer: medical news summaries:
The following medical news items
are relevant to risk factors for Ovarian Cancer:
About risk factors:
Risk factors for Ovarian Cancer are factors that do not seem
to be a direct cause of the disease,
but seem to be associated in some way.
Having a risk factor for Ovarian Cancer
makes the chances
of getting a condition higher but does
not always lead to Ovarian Cancer.
Also, the absence of any risk factors
or having a protective factor does not necessarily
guard you against getting Ovarian Cancer.
For general information and a list of risk factors,
see the risk center.
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Symptoms of Ovarian Cancer
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