What does a low creatinine level mean?

Low creatinine levels are less common but can occur in individuals with low muscle mass, malnutrition, or certain medical conditions that reduce muscle metabolism. It may also be seen in people who are pregnant or have reduced protein intake. Low creatinine levels usually aren’t a cause for concern on their own but may indicate other underlying conditions that should be evaluated. Your healthcare provider will interpret the results in the context of your overall health and medical history.