Presented herein are in-situ techniques for monitoring a recipient's cochlea health to proactively identify (i.e., predict) changes to the recipient's cochlea health outside of a clinical setting. The cochlea health monitoring techniques presented herein obtain one or more cochlea health biomarkers associated with a recipient's cochlea health, such the recipient's residual hearing, and analyze these biomarkers to predict that a cochlea health change is likely to occur.