While an estimated 5 to 10 percent of all cancers are due to hereditary factors, ovarian cancer is unique—up to 25 percent of these cancers are thought to have a hereditary cause.
A cancer diagnosis isn’t a reason to stop being vigilant when it comes to prevention. In fact, cancer patients have even more reason to be on guard, because they usually have a higher risk for infection or for developing other types of cancer.
The majority of cancer is sporadic and caused by genetic changes during your lifetime. However, approximately 5-10 percent of cancers are inherited.