Retaking courses at university can be a strategic decision, especially for students aiming for medical school. Key reasons for retaking a course include needing it for degree completion, receiving a grade below a C, experiencing a decline in knowledge over time, or having taken a poorly taught course. Some students may also consider retaking a course if they feel they did not grasp the material well enough, even if they received a passing grade. The potential for a GPA boost is a significant factor in this decision, as improving grades can enhance applications to graduate schools. However, it's essential to assess whether the course is crucial for foundational knowledge in future classes. Before deciding to retake a course, students are encouraged to review previous material independently to strengthen their understanding.