Can CRP levels indicate cancer?

CRP levels can be elevated in certain cancers, particularly those associated with chronic inflammation, such as lymphoma, lung cancer, or gastrointestinal malignancies. However, CRP is not a cancer-specific marker, and elevated levels are not diagnostic of cancer alone. High CRP levels may also result from infections, autoimmune diseases, or cardiovascular conditions. In oncology, CRP tests may be used to monitor inflammation related to cancer progression or treatment response. If your CRP levels are persistently high without a clear explanation, your doctor may recommend additional tests, such as imaging or biopsy, to rule out cancer or other underlying causes. Elevated CRP levels should always be interpreted in the context of your medical history and other diagnostic findings.