Skip to main content
VaccineWatch
VaccinesSymptomsStatesAnalysisToolsDashboardCompare

VaccineWatch

Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

Explore Data

  • Vaccines
  • Symptoms
  • Manufacturers
  • States
  • Dashboard
  • Compare Tool
  • Search

Deep Dives

  • The Denominator Problem
  • Onset Timing
  • Lot Number Analysis
  • COVID Impact
  • Myocarditis
  • Death Reports
  • Interactive Tools
  • All 23 Articles →

Resources

  • About
  • Methodology
  • FAQ
  • Glossary
  • Side Effects Guide
  • Vaccine Schedule
  • Vaccine Safety
  • Safety Timeline
  • Adverse Events
  • Is VAERS Reliable?
  • Report an Event
  • Disclaimer
  • VAERS Official Site ↗

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending
  • OpenMedicare
  • OpenLobby
  • TheDataProject.ai

Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

⚠️

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.

  1. Home
  2. Vaccines
  3. COVID-19 Vaccine
  4. Vaccination site swelling
COVID-19 Vaccine×Vaccination site swelling

Vaccination site swelling Reports for COVID-19 Vaccine

#126 most reported symptom for this vaccine

7,094
Reports
1
Deaths
45
Hospitalizations
0.01
Mortality Rate
%
0.6
Hosp. Rate
%

Vaccination site swelling and COVID-19 Vaccine

Vaccination site swelling has been reported 7,094 times in association with COVID-19 Vaccine vaccination in VAERS. This represents 0.6% of all 1,121,388 reports for this vaccine.

Among these reports, 1 mentioned death (0.01%) and 45 involved hospitalization (0.6%).

Vaccination site swelling is the #126 most frequently reported symptom for COVID-19 Vaccine out of 9223 total symptoms.

Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.

What This Means

Seeing 7,094 reports of Vaccination site swelling after COVID-19 Vaccine vaccination may seem alarming, but context is critical. With 1,121,388 total reports for this vaccine (representing many millions of doses), Vaccination site swelling appears in only 0.6% of reports.

The mortality rate among these reports is very low at 0.01%, suggesting most cases are non-fatal.

Important Context

•Association, not causation: These reports show Vaccination site swelling occurred after vaccination, not that the vaccine caused it.
•Background rates: Vaccination site swelling may occur naturally at baseline rates in the population, unrelated to vaccination.
•Anyone can report: VAERS accepts reports from anyone — patients, parents, healthcare providers — without requiring medical verification.
•Denominator missing: VAERS counts reports, not rates per dose. Without knowing how many doses were given, raw counts can be misleading. Learn more →

Similarly Ranked Symptoms

Poor quality product administered7,378 reportsPallor7,122 reportsAxillary pain7,051 reportsDysphagia7,018 reports

Quick Facts

Reports:7,094
Deaths:1
Hospitalizations:45
% of Vaccine:0.6%
Rank:#126 of 9223

Related Pages

COVID-19 Vaccine OverviewVaccination site swelling (All Vaccines)Why Raw Numbers MisleadTop Symptoms Analysis

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.