complement levels

Complement levels refer to the amount of complement proteins in the blood, which are part of the immune system that helps fight infections. These proteins work together to detect and destroy germs, mark pathogens for removal, and promote inflammation. When you have an infection or immune-related condition, complement levels can increase or decrease. Abnormal levels may indicate issues like autoimmune diseases, infections, or deficiencies in the immune system. Doctors measure these levels with blood tests to help diagnose and monitor these conditions, providing insight into how well your immune system is functioning.