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.
Abdominal distension appears in 3,317 VAERS reports across all vaccines. Of these, 115 reports also mentioned death and 615 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 22.0%. The top vaccines associated with this symptom are COVID19, RV5, HIBV. Remember: VAERS reports show temporal association, not causation.
Abdominal distension has been reported 3,317 times in VAERS from 1990 to 2026.
Of these reports, 115 were associated with death (3.47%) and 615 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Abdominal distension is 22.0%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.