Background The misuse of conscientious objection (CO) is a significant barrier to legal abortion access in many countries, especially in Latin America. We examine the reasons for denial of legal abortion services in Mexico and Bolivia and identify ways to mitigate the misuse of CO. Methods We conducted 34 in-depth interviews and 12 focus group discussions in two states in Mexico and four departments in Bolivia. Results were coded and categorized using a thematic analysis approach. Results Denial of abortion services based on CO is widespread in health facilities in Mexico and Bolivia and is primarily employed for reasons other than moral, religious, or ethical considerations. The main reasons for denial of services based on CO is lack of knowledge about abortion-related laws and fear of legal problems in abortion service provision. Conversely, the main reason to provide services is to comply with relevant laws. Denying services under the guise of CO negatively impacts pregnant people and health care teams, including fewer safe abortion options and increased workload and stigma, respectively. Most respondents cited training and education on abortion law as the foremost way to mitigate the negative impacts of the misuse of CO. Conclusions For many health personnel, knowing, understanding, and following the law is reason enough to provide abortion services. Individuals who object due to lack of knowledge about laws and fear of legal problems represent a key population that can be sensitized and equipped with the necessary information and resources to provide legal abortion services.

Lawyers are important actors shaping the abortion debate in Mexico. Of 250 private and public sector criminal lawyers surveyed from four regions, the majority knew about abortion laws in their states. At least 80% agreed with abortion in cases of rape, risk to a woman's life or health, and fetal malformations. Overall, 61% agreed with the Mexico City law and 84% would defend a woman denied a legal abortion. In multivariate analysis, being very knowledgeable of abortion laws was a significant predictor of more "progressive" abortion opinions, support for the Mexico City law, and support for the health indication.