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Pilot Study of Suction as a Mechanism of IUD Expulsion With Concomitant Menstrual Cup Use

Who can join

Ages 18 to 45 · Women · Healthy volunteers welcome

Inclusion Criteria:

* Female
* Between the ages of 18-45
* Currently has an FDA approved IUD
* Present to CWHC for IUD removal

Exclusion Criteria:

* Known sensitivity or allergy to silicone
* known active vaginal infection (yeast, bacterial vaginosis, untreated sexually transmitted infection)
* IUD strings not visible
* Positive pregnancy test

About the study

This study will provide pilot data examining suction as a mechanism of IUD displacement with menstrual cup use. The investigator hypothesize that manufacturer-recommended menstrual cup insertion and removal by breaking the seal will result in 15% rate of IUD displacement/expulsion. The investigator will also use this data to explore variables associated with IUD displacement and menstrual cup use. By examining the role of suction as a possible mechanism of IUD displacement, this research will allow healthcare providers to better counsel patients who use IUDs regarding menstrual cup use. Having a better understanding of the mechanics of IUD displacement could lead to the development of strategies to prevent expulsion.

What is being tested

• Menstrual Cup Removal (other)

Sponsor: University of Colorado, Denver · Participants: 80 · Started: Feb 20, 2022

Contact the study team

• Cara Clure, MD · Phone: 303-724-8482
• Eva Dindinger, MPH · Phone: 303-724-8482

Official record on ClinicalTrials.gov — NCT05254041

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Oct 2, 2026. Each study sets its own eligibility; the study team decides who can join.