The automatic tissue processor is a device used in pathology laboratories for the preparation of tissue samples for microscopic analysis. It enables efficient and standardized processing steps, including fixation, dehydration, clearing, and embedding in paraffin. This ensures the preservation of cellular structure and facilitates subsequent cutting and staining. The automated processor optimizes processing time and minimizes human errors, thereby increasing laboratory productivity. Its use has improved the accuracy and quality of results in anatomical pathology diagnosis.