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Hospitalized COVID patients face a dramatically higher risk of gastrointestinal bleeding — and that risk doesn't disappear quickly. A large UK cohort study found that adults hospitalized with COVID had significantly elevated rates of upper and lower GI bleeding for up to two years post-diagnosis. Vaccination helped, reducing — but not eliminating — the risk compared to unvaccinated individuals.
A large UK cohort study analyzing linked health records from over 18 million adults found that hospitalization with COVID was associated with a dramatically elevated risk of gastrointestinal (GI) bleeding — and that risk lingered for up to two years after diagnosis. The findings reinforce COVID-19's identity as a systemic illness with long-reaching consequences well beyond the respiratory system.
The study tracked GI outcomes — including upper and lower GI bleeding, gallstones, peptic ulcer, and metabolic liver disease — across three cohorts: a pre-vaccination group and separate vaccinated and unvaccinated groups. Hospitalized patients consistently showed the highest risk, while vaccination meaningfully reduced but did not eliminate the elevated GI bleeding risk.
By the Numbers:
Why it matters: Clinicians managing COVID survivors — especially those who were hospitalized — should remain alert to GI complications long after recovery. The data also add to the growing case for vaccination as a tool to reduce long-term COVID-related harm.
