Menstrual Cups and UTI Risk
Based on current evidence, menstrual cups do not appear to increase the risk of urinary tract infections (UTIs). The available data suggests menstrual cups are safe for urogenital health, though the evidence quality is limited.
Evidence Assessment
The most comprehensive and recent systematic review specifically examining menstrual products and reproductive/urogenital tract infections found that associations between menstrual products and RUTIs are inconclusive 1. This 2025 review identified significant methodological limitations across existing studies, with poor product definitions and heterogeneous outcome measures preventing definitive conclusions.
A 2019 systematic review and meta-analysis of menstrual cup safety across 43 studies (3,319 participants) found no adverse effects on vaginal flora and identified only 9 reports of urinary tract complaints among all users 2. This represents a very low incidence rate and does not establish causation.
Clinical Context from UTI Guidelines
Current UTI prevention guidelines do not identify menstrual cups as a risk factor. The 2020 ACR guidelines on recurrent UTIs specifically note that diaphragms and spermicides increase UTI risk 3, but menstrual cups are conspicuously absent from risk factor discussions. The 2024 WikiGuidelines consensus statement on UTI prevention similarly makes no mention of menstrual cups as a concern 4.
The 2019 AUA/CUA/SUFU guideline on recurrent UTIs emphasizes that sexually active women using diaphragms and/or spermicides are at increased risk 5, but again, menstrual cups are not cited as problematic.
Important Caveats
IUD Displacement Risk
While not directly related to UTI risk, women using both menstrual cups and intrauterine devices should be aware that menstrual cup use is independently associated with IUD displacement (adjusted OR 3.09) 6. A 2024 French study found 12% of menstrual cup users experienced IUD expulsion versus 2.6% of non-users 7. This is clinically relevant as it could lead to unintended pregnancy, though it does not increase infection risk.
Study Quality Issues
The 2025 systematic review found that only 3.2% of studies fully defined the menstrual products being studied and just 9.7% adequately defined comparator products 1. Most studies relied on self-reported symptoms rather than laboratory-confirmed infections, limiting the reliability of conclusions.
Practical Recommendations
- Menstrual cups can be recommended as safe alternatives to tampons and pads from a UTI prevention standpoint
- Standard UTI prevention measures remain important: adequate hydration, post-coital voiding, and avoiding spermicide-containing products 3
- Women using both menstrual cups and IUDs should be counseled about displacement risk and instructed to check IUD strings regularly
- If recurrent UTIs develop, focus investigation on established risk factors (sexual activity, anatomical abnormalities, voiding dysfunction) rather than attributing symptoms to menstrual cup use
The absence of menstrual cups from major UTI prevention guidelines, combined with safety data from large systematic reviews, supports their use without specific UTI-related concerns.