Knowing the risk factors for ovarian cancer can keep
you one step ahead. Knowing what is and isn’t linked to ovarian cancer help put
us at ease because the unknown is always the scary. Researchers have discovered
certain factors that change a woman’s likelihood of developing ovarian cancer.
Read about some of the risk factors below.
Age
The risk of developing ovarian cancer gets
higher with age. Ovarian cancer is rare in women younger than 40. Most ovarian
cancers develop after menopause. Half of all ovarian cancers are found in women
63 years of age or older.
Obesity
Various studies have looked at the
relationship of obesity and ovarian cancer. Overall, it seems that obese women
(those with a body mass index of at least 30) have a higher risk of developing
ovarian cancer.
Reproductive history
Women who have been pregnant and carried it to
term have a lower risk of ovarian cancer than women who have not. The risk goes
down with each full-term pregnancy. Breastfeeding may lower the risk even
further.
Birth control
Women who have used oral
contraceptives (also known as birth
control pills or the
pill) have a lower risk of ovarian cancer. The lower risk is seen after
only 3 to 6 months of using the pill, and the risk is lower the longer the
pills are used. This lower risk continues for many years after the pill is
stopped.
A recent study found that the women
who used depot medroxyprogesterone acetate (DMPA or Depo-Provera CI®), an injectable hormonal contraceptive had a lower
risk of ovarian cancer. The risk was even lower if the women had used it for 3
or more years.
Gynecologic surgery
Tubal ligation (having your tubes tied) may
reduce the chance of developing ovarian cancer by up to two-thirds. A
hysterectomy (removing the uterus without removing the ovaries) also seems to
reduce the risk of getting ovarian cancer by about one-third.
Fertility drugs
In some studies, researchers have
found that using the fertility drug clomiphene citrate (Clomid®) for longer than one year may increase the risk for
developing ovarian tumors. The risk seemed to be highest in women who did not
get pregnant while on this drug. Fertility drugs seem to increase the risk of
the type of ovarian tumors known as "low malignant potential"
(described in the section, "What is ovarian cancer?"). If you
are taking fertility drugs, you should discuss the potential risks with your
doctor. However, women who are infertile may be at higher risk (compared to fertile
women) even if they don’t use fertility drugs. This might be in part because
they haven't given birth or used birth control pills (which are protective).
More research to clarify these relationships is now underway.
Estrogen therapy and hormone therapy
Some recent studies suggest women using
estrogens after menopause have an increased risk of developing ovarian cancer.
The risk seems to be higher in women taking estrogen alone (without
progesterone) for many years (at least 5 or 10). The increased risk is less
certain for women taking both estrogen and progesterone.
Unfortunately risk factors don’t tell us everything we need
to know about diseases. And having one even several risk factors does not
automatically mean you’ll get the disease. To learn about more risk factors
follow the link to read the full article from American Cancer Society: http://bit.ly/1r9S8d3