Methylation detection of circulating free DNA and FFPF samples from patients with ovarian endometriosis, ovarian cancer and other benign ovarian cysts will be performed to select markers for ovarian endometriosis diagnosis. The markers will be validated in patients with ovarian cysts found by ultrasound. The diagnosis accuracy of the markers will be evaluated by comparing with the pathological diagnosis.
Methylation detection of circulating free DNA to identify markers for diagnosis and differential diagnosis of ovarian endometriosis.