Detecting ovarian cancer can be challenging because early-stage ovarian cancer often does not cause specific symptoms. However, there are several methods used to detect ovarian cancer, including:

1. Pelvic examination: During a pelvic exam, your healthcare provider will manually examine your ovaries and uterus for any abnormalities or signs of ovarian cancer. However, it's important to note that a pelvic exam alone cannot definitively diagnose ovarian cancer.

2. Imaging tests: Imaging tests such as transvaginal ultrasound, CT scan, or MRI can help visualize the ovaries and detect any abnormalities or tumors. These tests can provide detailed images of the ovaries and surrounding structures, aiding in the diagnosis of ovarian cancer.

3. Blood tests: A blood test called CA-125 can measure the levels of a protein called cancer antigen 125. Elevated CA-125 levels may indicate the presence of ovarian cancer, although this test is not specific to ovarian cancer and can be elevated in other conditions as well.

4. Biopsy: If abnormalities are detected during a pelvic exam or imaging tests, a biopsy may be performed. A biopsy involves removing a small sample of tissue from the ovary for examination under a microscope. This is the most definitive way to diagnose ovarian cancer.

It's important to remember that these methods are used to detect ovarian cancer, but a definitive diagnosis can only be made through a biopsy. If you have concerns about ovarian cancer, it's best to consult with your healthcare provider who can evaluate your symptoms, perform necessary tests, and provide appropriate guidance.