Inclusion Criteria:
1. Presence of venous origin chronic pelvic pain for greater than 6 months (VAS ≥7 as determined by 4 consecutive weeks of baseline self-assessments) despite non-vascular therapy as delineated by the following criteria:
* Pain exacerbated by walking, standing or lifting
* Symptoms are at least partially alleviated by lying down
* Prolonged post-coital ache
* Absence of non-venous origin CPP as determined by Gynecology examination
2. Symptoms-Varices-Pathophysiology Classification18 including of one of the following:
•S2V2PBGV,R,NT, S2V2PRGV,R,NT , S2V2PLGV,R,NT, with or without S2V2 PBIIV,R,NT, S2V2 PLIIV,R,NT, S2V2 PRIIV,R,NT
3. CT, TAUS and diagnostic venography (if needed) imaging review for pelvic venous imaging factors
* Left or right ovarian vein diameter greater than or equal to 6 mm as documented by TAUS or CT
* Presence of intrabdominal/pelvic varices as documented by TAUS or CT (≥1 veins, \>5 mm diameter)
* Presence of venous reflux in ovarian and/or internal iliac veins without evidence of hemodynamically significant stenosis
Exclusion Criteria:
* Female \<18 years of age
* Pregnancy (positive pregnancy test)
* Female subject who plans to become pregnant during study period
* Female subject who is actively breastfeeding
* Patient who is post-menopausal or anovulatory with hormone suppression
* History of prior hysterectomy
* Prior ovarian vein embolization or ovarian vein ligation
* Inability to tolerate endovascular procedure due to acute illness or general health
* Planned simultaneous treatment with nerve blocks during the duration of the study
* Laparoscopy or planned surgical intervention during the duration of the study
* Known allergy to sclerosant, coil, stent or catheter components including nickel allergy
* Any iliac vein stenosis determined identified by the investigator on pelvic DUS, CT venogram, and/or Catheter Venography and deemed significant for exclusion by study patient review committee.
* Any renal vein stenosis with resultant renal hilar varices/collaterals and lumbar collaterals identified by the investigator on pelvic DUS, CT venogram, and/or Diagnostic Venography and deemed significant for exclusion by study patient review committee.
* Presence of isolated extra-pelvic vulvar and/or lower extremity varices without intrabdominal pelvic varices. Primary S3 categorization study exclusion.
* Serious medical conditions that might preclude full participation in the study to the desired endpoint (e.g., uncontrolled diabetes, malignancy, COPD, MI, CHF, etc.)
* Severe allergy to iodinated or gadolinium-based contrast refractory to steroid premedication
* Severe renal impairment (on chronic dialysis or estimated GFR \<30 mL/min)
* Hemoglobin \<8.0 g/dL, uncorrectable INR \>3.0 or platelet count \<75,000/microliter
* Inability to provide informed consent or to comply with study assessments
* Post thrombotic IVC, iliac or ovarian vein changes
