Ovarian cancer is the eighth most commonly occurring cancer in women and the fifth leading cause of cancer-related deaths in women.

According to the American Cancer Society, in 2020, it is estimated that approximately 21,750 women in the United States will receive a new diagnosis of ovarian cancer, and an estimated 13,940 women will die from the disease. Understanding the risk factors associated with ovarian cancer can help in preventing and managing the disease. One of the significant risk factors associated with ovarian cancer is hereditary factors.

Hereditary factors and ovarian cancer

Studies suggest that 5-10% of all ovarian cancer cases are related to hereditary factors. According to the National Cancer Institute (NCI), women who have a strong family history of ovarian or breast cancer are at high risk of developing the disease.

BRCA Gene mutations

BRCA1 and BRCA2 are two genes that produce proteins that help prevent the growth of tumors in the body.

When these genes are altered or mutated, the proteins they produce may not function correctly, leading to an increased risk of developing cancer, including ovarian cancer.

Women who have inherited a gene mutation in either BRCA1 or BRCA2 are at high risk of developing ovarian cancer.

According to the NCI, women with a BRCA1 mutation have a 44% risk of developing ovarian cancer by age 80, while women with a BRCA2 mutation have a 17% risk of developing ovarian cancer by age 80. Furthermore, women who have both a BRCA1 and BRCA2 mutation are at an even higher risk of developing the disease.

It is important to note that not all ovarian cancer cases that are related to BRCA gene mutations are hereditary.

In some cases, the mutations may occur spontaneously in an egg or a sperm before conception, leading to a higher risk of developing ovarian cancer.

Lynch Syndrome

Lynch syndrome, also known as hereditary non-polyposis colorectal cancer (HNPCC), is an inherited genetic condition that increases the risk of developing certain types of cancer, including ovarian cancer.

People with Lynch syndrome inherit mutations in genes responsible for repairing DNA. When these genes do not function correctly, the likelihood of developing cancer increases.

According to the NCI, women who have Lynch syndrome are at an increased risk of developing ovarian cancer. The risk of developing ovarian cancer in women with Lynch syndrome is estimated to be between 4% and 24%, depending on the gene involved.

Other Hereditary Conditions

In addition to BRCA gene mutations and Lynch syndrome, other hereditary conditions are associated with an increased risk of developing ovarian cancer. These include:.

Peutz-Jeghers syndrome
Cowden syndrome
Hereditary breast and ovarian cancer syndrome (HBOC)
Fanconi Anemia

Conclusion

Ovarian cancer is a serious disease, and understanding the risk factors associated with the disease is crucial to its prevention and management.

Hereditary factors, including BRCA gene mutations, Lynch syndrome, and other hereditary conditions, are associated with an increased risk of developing ovarian cancer. Women who have a family history of ovarian or breast cancer or have inherited a gene mutation associated with ovarian cancer should talk to their healthcare provider about options for management and prevention of the disease.