This is a single-arm study. All participants will receive a structured educational session on menstrual cup use, including hygiene, insertion and removal techniques, maintenance, and troubleshooting. Following the training, each participant will be provided with one menstrual cup for personal use. Participants will be instructed to use the cup over the course of six consecutive menstrual cycles. User satisfaction and experiences with the menstrual cup will be monitored and assessed through follow-up questionnaires at regular intervals throughout the study period. There is no control or comparator arm in this study.The study, which was semi-experimental in nature, used a repeated measures design (within-subjects design). In this type of experimental design, the participants included in the study participate in all experimental conditions. Therefore, the participants form their own control group, which increases the sensitivity of the experiment. The difference between the measurements

The intervention implemented in this study is a unique approach tailored to menstrual hygiene management among women who use wheelchairs. What distinguishes this intervention from others is the combination of both education and practical support for menstrual cup use. While menstrual hygiene management in the literature generally targets the general population, this study specifically addresses the unique needs and challenges faced by women with disabilities by providing individualized menstrual cup selection and usage guidance. Additionally, the intervention includes repeated follow-ups over six menstrual cycles, allowing continuous support and monitoring of the participants' experiences. This approach aims not only to improve hygiene practices but also to enhance user satisfaction and long-term adherence. The comprehensive and personalized nature of this intervention differentiates it from most existing studies and seeks to offer practical, sustainable solutions for menstrual hygiene

The study used a structured data collection form developed by the researcher based on the literature and expert opinions. The initial section (23 items) assessed participants' sociodemographic characteristics, parity, and menstrual hygiene management. Follow-up forms after menstrual periods 1-5 (18 items) evaluated menstrual cup use and menstrual hygiene management, while the final follow-up after the 6th menstrual period (23 items) included additional questions on satisfaction with menstrual cup use and perceived changes in menstrual hygiene management.

Satisfaction with menstrual cup use was assessed using a Likert scale regarding insertion, removal, cleaning, leakage prevention, storage, odor control, comfort during daily activities, comfort during sleep, overall comfort, and perceived advantages over other menstrual hygiene products (1 = very poor, 5 = very good). Ease of use for insertion, removal, cleaning, and storage was rated as 1 = easy, 2 = not very easy, 3 = difficult.

The study used a structured data collection form developed by the researcher based on the literature and expert opinions. The initial section (23 items) assessed participants' sociodemographic characteristics, parity, and menstrual hygiene management. Follow-up forms after menstrual periods 1-5 (18 items) evaluated menstrual cup use and menstrual hygiene management, while the final follow-up after the 6th menstrual period (23 items) included additional questions on satisfaction with menstrual cup use and perceived changes in menstrual hygiene management.The menstrual periods during which participants used menstrual cups will be compared with the periods during which they used other sanitary products; perceived changes (positive/negative/no change) in economic and social life and sleep will be measured in the final follow-up form.