Fibrinolysis is a normal body process that keeps naturally occurring blood clots from growing and causing problems.
Primary fibrinolysis refers to the normal breakdown of clots.
Secondary fibrinolysis is the breakdown of blood clots due to a medical disorder, medicine, or other cause. This may cause severe bleeding.
Primary fibrinolysis; Secondary fibrinolysis
Causes, incidence, and risk factors
Blood clots form on a protein called fibrin. The breakdown of fibrin (fibrinolysis) can increase under certain conditions, such as:
- Bacterial infections
- Intense exercise
- Not enough oxygen to tissues
Sometimes, medicines may be given to help blood clots breakdown more quickly. For example, if a blood clot causes a heart attack.
Schafer AI. Hemorrhagic disorders: Disseminated intravascular coagulation, liver failure, and vitamin K deficiency. In: Goldman L, Ausiello D, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 178.