+Adverse effects are unintended, undesirable outcomes that arise from an intervention or event. These unwanted consequences can range from mild discomfort to severe [Injury](/wiki/injury) or [Disease](/wiki/disease), impacting an individual's well-being.
+## See also
+- [Side Effect](/wiki/side_effect)
+- [Complication](/wiki/complication)
+- [Harm](/wiki/harm)