Compared to women without BRCA germline pathogenic variants, women with pathogenic variants are at a higher lifelong risk of developing ovarian cancer. There is no conclusive methodology for the early diagnosis of ovarian cancer. In contrast, hereditary breast and ovarian cancer (HBOC) syndrome is a disease concept that can be diagnosed and allows for subsequent surveillance and risk-reducing surgery. Only risk-reducing salpingo-oophorectomy (RRSO) can reduce the risk of death in ovarian cancer. But after RRSO, risk for a primary peritoneal carcinoma has been reported in some studies, and there have also been reports of occult cancer being discovered through pathological examination after surgery. With the partial approval of diagnostic and therapeutic approaches for HBOC under insurance, the diagnosis rate for these conditions has improved owing to the increased use of genetic counseling and the expanded provision of information. In addition, the need for RRSO has permeated, and currently, several patients are undergoing RRSO. Moreover, it is necessary to educate patients regarding ovarian cancer at the time of breast cancer diagnosis. Laparoscopic RRSO is a procedure that can be conducted safely, but long-term follow-up is needed to monitor the postoperative development of peritoneal cancer and adverse events. Furthermore, a more detailed histopathological diagnosis will allow for the identification of small abnormalities in the fallopian tube. Considering the significance of such lesions, we believe that long-term treatment information and follow-up are of paramount importance.