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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.
Haematochezia
3,038 total reports34.8% serious outcomes
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3,038
Total Reports
38
Deaths
1,019
Hospitalizations
34.8
Severity Rate
% serious outcomes
About Haematochezia Reports
Haematochezia has been reported 3,038 times in VAERS from 1990 to 2026.
Of these reports, 38 were associated with death (1.25%) and 1,019 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Haematochezia is 34.8%.
Understanding Haematochezia in VAERS
•Temporal association only: These reports show Haematochezia occurred after vaccination, not necessarily because of vaccination.
•Background rates matter: Many symptoms occur naturally at baseline rates in the population, unrelated to vaccination.
•Reporting variability: Medical terminology may be used differently by various healthcare providers and over time.
•Investigation needed: High-frequency reports may trigger further epidemiological studies to determine causation.
What This Data Shows
Most Associated Vaccines: The vaccines most frequently mentioned in reports with Haematochezia. This may reflect usage patterns, not causation.
Severity Patterns: The percentage of reports that involve serious outcomes can help prioritize safety investigations.
Reporting Trends: Changes in reporting frequency over time may reflect increased awareness, media attention, or actual safety signals.
Most Associated Vaccines
View all vaccines →Detailed Breakdowns
Quick Facts
Reports:3,038
Deaths:38
Hospitalizations:1,019
Mortality Rate:1.25%
Severity Rate:34.8%
Related Analysis
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Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.