Pelvic varicose veins, also known as pelvic venous congestion syndrome (PVCS), refer to the abnormal dilation and tortuosity of the veins in the pelvic region. These veins become enlarged and congested, leading to various symptoms and complications. PVCS is often compared to varicose veins in the legs, but it occurs in the veins surrounding the pelvic organs such as the uterus, ovaries, and bladder.