Approximately 1.8 billion individuals menstruate every month. Therefore, the need for effective and affordable menstrual products is paramount.1 Most widely available menstrual products, such as sanitary pads and tampons, are disposable and of high plastic content; menstrual products in the US alone contribute to 240 000 tons of solid waste per year.2 The menstrual cup is a typically reusable, flexible, self-retaining intravaginal menstrual fluid collection device. Increasing public knowledge and acceptance of the reusable menstrual cup can reduce waste, simplify menstrual hygiene, and provide accessibility for resource-poor communities. Although disposable products may be convenient because they do not require cleaning, menstruating individuals may be motivated to use menstrual cups for environmental concerns and reduced need for purchasing hygiene supplies. For many menstruating individuals, and some clinicians, there are persistent concerns related to menstrual hygiene product safety outside of the use of sanitary pads. The goal of this article is to expand clinician knowledge about the safety and best practices of menstrual cup use to support patients who choose this product.