Fibrinogen is a protein produced by the liver that plays a crucial role in blood clotting. When a blood vessel is injured, fibrinogen is converted into fibrin, which forms a mesh-like structure that helps to stop bleeding by trapping blood cells and creating a stable clot. This process is essential for wound healing and maintaining the integrity of the circulatory system. In addition to its role in clot formation, fibrinogen also has functions in inflammation and tissue repair. Abnormal levels of fibrinogen in the blood can indicate various health issues, including cardiovascular diseases or inflammatory conditions. Monitoring fibrinogen levels can help healthcare providers assess a patient's risk for these conditions.