Risk Factors
A risk factor is any characteristic, behavior, or condition that raises the possibility of developing a disease. Here are some known risk factors for developing cancer of the fallopian tubes:
Age
Your risk for developing cancer of the fallopian tubes increases with age. Most women with this cancer are over the age of 50.

Family History
Even if there is not a known genetic mutation, close relatives (mothers, sisters, daughters) of a woman with fallopian tube cancer are at an increased risk for developing the disease

Genetics
Genetics: Up to 20% of ovarian cancers may be caused by inherited genetic traits such as mutations in the BRCA1 or BRCA2 genes or Lynch Syndrome, all of which involve mutations in genes associated with the DNA repair pathway.

Pregnancy
Older women who have never been pregnant have a greater chance of developing fallopian tube cancer. This risk goes down each time a woman gives birth.