Calcitoninogen 0.11 indicates that bacterial infection is unlikely. Calcitonin is an inflammatory indicator that can be used to monitor the degree of bacterial infection in the body, and its sensitivity is more clinically useful than that of ultrasensitive C-reactive protein and white blood cells. Normal serum calcitonin is less than 0.5µg /L, and if it is greater than 0.5µg /L, it suggests the presence of infection. Elevated calcitonin can be seen in infectious diseases such as sepsis, bacterial endocarditis, viral infections, fungal infections, etc. It can also be seen in non-infectious diseases such as sepsis, bacterial endocarditis, viral infections, and fungal infections. It can also be seen in non-infectious diseases, such as surgery and trauma, renal insufficiency, tumors, hematologic diseases, pancreatitis and other diseases. To find the cause of elevated calcitoninogen, you need to go to the hospital and consult a doctor.