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.
Muscle tightness appears in 3,980 VAERS reports across all vaccines. Of these, 7 reports also mentioned death and 226 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 5.9%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), Shingles (Zostavax). Remember: VAERS reports show temporal association, not causation.
Muscle tightness has been reported 3,980 times in VAERS from 1990 to 2026.
Of these reports, 7 were associated with death (0.18%) and 226 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Muscle tightness is 5.9%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.