Antiphospholipid syndrome (APS) is an autoimmune disease associated with the presence of antiphospholipid antibodies (APA) in the body. However, it is possible to have APS and not develop symptoms. Nevertheless, these antiphospholipid antibodies cause the person to have an increased risk of thrombosis in certain situations such as those mentioned below:
- Prolonged rest or immobilization.
- Surgical intervention.
- Ingestion of oral contraceptives.
- Autoimmune disease such as systemic lupus erythematosus (SLE).
In addition, the risk of thrombosis may also be elevated with hypertension, diabetes, obesity and smoking if the person has AAF.