Possible causes of high D-dimer include severe infections (sepsis, etc.), malignant tumors (lung, intestinal, gastric, etc.), acute promyelocytic leukemia, and other diseases.
High D-dimer is usually the result of secondary hyperfibrinolysis in the body, and serious infections, malignant tumors and other diseases may lead to secondary hyperfibrinolysis, resulting in elevated D-dimer, which may gradually return to normal after the primary disease is treated.
If disseminated intravascular coagulation occurs, the patient may present with elevated D-dimer, and with elevated D-dimer, the patient is at increased risk for thrombotic disorders, such as pulmonary embolism, in which D-dimer is significantly elevated.
When D-dimer is elevated, patients need to go to the hematology department in a timely manner, complete the relevant examinations to identify the cause of the disease, and then treat the cause of the disease, and if necessary, provide anticoagulation therapy with low molecular heparin sodium to prevent thrombotic diseases.