Employers in mining workplaces have a legal responsibility to ensure the health and safety of their employees. As more females join the mining industry, concerns and questions regarding the well-being of pregnant and breastfeeding employees are on the rise. It is essential to grasp the potential impact of workplace hazards on pregnant and breastfeeding employees, along with their developing fetuses, and to establish methods for eliminating or reducing exposure risks. Written by Céline Larivière and Dr. Sandra Dorman.