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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.

  1. Home
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  3. COVID-19 Vaccine
  4. Intermenstrual bleeding
COVID-19 Vaccine×Intermenstrual bleeding

Intermenstrual bleeding Reports for COVID-19 Vaccine

#345 most reported symptom for this vaccine

1,801
Reports
0
Deaths
29
Hospitalizations
0
Mortality Rate
%
1.6
Hosp. Rate
%

Intermenstrual bleeding and COVID-19 Vaccine

Intermenstrual bleeding has been reported 1,801 times in association with COVID-19 Vaccine vaccination in VAERS. This represents 0.2% of all 1,121,388 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 29 involved hospitalization (1.6%).

Intermenstrual bleeding is the #345 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 1,801 reports of Intermenstrual bleeding 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), Intermenstrual bleeding appears in only 0.2% of reports.

The mortality rate among these reports is very low at 0.00%, suggesting most cases are non-fatal.

Important Context

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

White blood cell count normal1,810 reportsFeeling of body temperature change1,805 reportsDeafness unilateral1,800 reportsSensory disturbance1,793 reports

Quick Facts

Reports:1,801
Deaths:0
Hospitalizations:29
% of Vaccine:0.2%
Rank:#345 of 9223

Related Pages

COVID-19 Vaccine OverviewIntermenstrual bleeding (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.