A test that measures overall genomic instability in routine cervical smears can detect aggressive ovarian cancer up to nine years before its clinical diagnosis, research suggests. Whole-genome sequencing of DNA purified from Pap smears, which are routinely collected during cervical cancer screening, highlighted women who had gone on to develop high-grade serous ovarian cancer (HGSOC). https://www.insideprecisionmedicine.com/topics/precision-medicine/smear-test-flags-ovarian-cancer/
Women aren't aware they have ovarian cancer until Stage 4. No symptoms except possible lower back pain and bloating.