Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
CA 15-3
CA 15-3 is a glycoprotein marker that, when included in a broader panel, provides a more complete baseline for performance-focused individuals. Tracking trends over time supports proactive health management alongside your fitness and recovery goals.
What It Measures
CA 15-3 measures the blood concentration of a glycoprotein shed by breast epithelial cells. Higher concentrations may reflect increased cellular turnover or secretion from breast tissue, but the result alone cannot confirm or exclude any specific diagnosis.
Why It Matters
Tracking CA 15-3 over time can give clinicians useful information about how breast tissue is behaving. Rising trends may prompt further investigation, while a stable or falling result can be reassuring in a monitoring context. A single elevated result should always be interpreted alongside other clinical information by a qualified healthcare provider.
When to Test
CA 15-3 testing is typically ordered by a healthcare provider as part of ongoing monitoring rather than routine screening. Consult your healthcare provider before arranging this test independently.
Symptoms
Low Levels
High Levels
Lifestyle Tips
Maintaining a healthy lifestyle — including a balanced diet, regular physical activity, a healthy body weight, limiting alcohol, and not smoking — supports overall breast and general health. These habits do not directly lower CA 15-3 but contribute to your broader health. Always discuss significant lifestyle changes with your healthcare provider.