Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.
Fibrin D dimer increased appears in 2,852 VAERS reports across all vaccines. Of these, 178 reports also mentioned death and 1,754 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 67.7%. The top vaccines associated with this symptom are COVID-19, COVID-19 (Bivalent), Unknown Vaccine. Remember: VAERS reports show temporal association, not causation.
Fibrin D dimer increased has been reported 2,852 times in VAERS from 1990 to 2026.
Of these reports, 178 were associated with death (6.24%) and 1,754 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Fibrin D dimer increased is 67.7%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.