ArticleContraception and reproductive medicine2025
The use of a menstrual cup as a risk factor for displacement of intrauterine devices: a case-control study.
Article in Contraception and reproductive medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04782583 (Shifting of Intrauterine Device and Use of the Menstrual Cup), which is not on this map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Shifting of Intrauterine Device and Use of the Menstrual Cup: Case-control Study
Who cites it
1 citing paper in PubMed.
- Yonder: Menstrual cups and IUD displacement, deprived area GP retention, endometriosis diagnosis, and patient assertiveness.The British journal of general practice : the journal of the Royal College of General Practitioners · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMenstrual cups (MC) are being increasingly used for menstruation management as an alternative to tampons and sanitary pads. Intrauterine devices (IUD) are commonly and increasingly used for birth control. Displacement of an IUD from the uterine fundus can reduce its efficiency, potentially leading to unwanted pregnancies. Recently, concerns have been raised regarding a possible increase in the risk of IUD displacement, associated to the use of MC. This study measures the association between MC use and IUD displacement, taking into account the already known risk factors of IUD displacement. METHODS AND
findingsWomen consulting for follow-up of an IUD in two primary care facilities in Paris were enrolled in the study between March 2020 and May 2021. IUD position was assessed by transvaginal ultrasound. Use of MC and exposition to known risk factors for IUD displacement were assessed by a standardized investigator-administered questionnaire. Frequency of MC use was compared between patients with well-positioned IUD and patients with displaced IUD. A linear regression model looked for an independent association between MC use and IUD displacement, with respect to known risk factors for IUD displacement. 747 patients were included, out of which 6.8% had a displaced IUD. MC use was reported by 17.0% of patients with a well-positioned IUD versus. 41.2% of patients with a displaced IUD. After adjustment for known risk factors of IUD displacement, MC use appeared to be significantly and independently associated with IUD displacement (aOR [95CI]: 3.09 [1.56-6.05]).
conclusionsThe use of a menstrual cup seems to be an independent risk factor for intrauterine device displacement. CLINICAL
trial registrationNCT04782583.
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