A positive CRP test, which indicates an elevated level of C-reactive protein in the blood, can be a sign of various conditions. Some of the most common include:
- Infections from bacteria or viruses: CRP levels rise in response to infections, helping the body fight them off.
- Inflammatory bowel disease (IBD): Conditions like Crohn's disease and ulcerative colitis cause chronic inflammation in the digestive tract, leading to elevated CRP levels.
- Rheumatoid arthritis (RA) and other autoimmune diseases: These conditions involve the immune system attacking the body's own tissues, causing inflammation and raising CRP levels.
- Heart attack: CRP levels are elevated in the aftermath of a heart attack.
- Cancer: Some cancers can trigger inflammation, leading to a positive CRP test.
It's important to note that a positive CRP test alone doesn't confirm any specific disease. Your doctor will consider your symptoms, medical history, and other test results to determine the underlying cause.