The Relationship Between The Use of 3-Monthly Injection Contraception and The Incidence of Amenorhea

Background: Three-monthly injectable contraception is one of the most commonly used hormonal contraceptive methods due to its effectiveness, practicality, and high acceptance among women of reproductive age. However, its use is frequently associated with menstrual changes, particularly amenorrhea, which may affect user satisfaction and continuity of contraceptive use. Objective: This study aimed to analyze the relationship between the use of 3-monthly injectable contraception and the incidence of amenorrhea among women of reproductive age. Methods: This study employed a quantitative approach with an analytical observational design using a cross-sectional method. The study was conducted at a primary healthcare facility providing family planning services. A purposive sampling technique was applied to select respondents who met the inclusion criteria. Data were collected using a structured questionnaire and supported by a review of medical records. The Chi-square test was used to analyze the relationship between contraceptive use and the incidence of amenorrhea, with a significance level set at p < 0.05. Results: The results showed that more than half of the respondents experienced amenorrhea. Amenorrhea was more frequently observed among women who had used 3-monthly injectable contraception for more than one year. Statistical analysis revealed a significant relationship between the duration of 3-monthly injectable contraceptive use and the incidence of amenorrhea (p < 0.05). Conclusion: There is a significant relationship between the use of 3-monthly injectable contraception and the occurrence of amenorrhea. These findings emphasize the importance of providing comprehensive counseling regarding potential menstrual changes to improve contraceptive acceptance and continuity.