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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.

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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.

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  3. COVID-19 Vaccine
  4. Head discomfort
COVID-19 Vaccine×Head discomfort

Head discomfort Reports for COVID-19 Vaccine

#183 most reported symptom for this vaccine

4,412
Reports
10
Deaths
227
Hospitalizations
0.23
Mortality Rate
%
5.1
Hosp. Rate
%

Head discomfort and COVID-19 Vaccine

Head discomfort has been reported 4,412 times in association with COVID-19 Vaccine vaccination in VAERS. This represents 0.4% of all 1,121,388 reports for this vaccine.

Among these reports, 10 mentioned death (0.23%) and 227 involved hospitalization (5.1%).

Head discomfort is the #183 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 4,412 reports of Head discomfort 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), Head discomfort appears in only 0.4% of reports.

The mortality rate among these reports is very low at 0.23%, suggesting most cases are non-fatal.

Important Context

•Association, not causation: These reports show Head discomfort occurred after vaccination, not that the vaccine caused it.
•Background rates: Head discomfort 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

Menstruation irregular4,612 reportsExposure during pregnancy4,590 reportsDeep vein thrombosis4,408 reportsAcute kidney injury4,380 reports

Quick Facts

Reports:4,412
Deaths:10
Hospitalizations:227
% of Vaccine:0.4%
Rank:#183 of 9223

Related Pages

COVID-19 Vaccine OverviewHead discomfort (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.