Cellular repair mechanisms are processes that help maintain the integrity of cells by fixing damage to their structures and functions. These mechanisms include DNA repair, which corrects errors in the genetic material, and protein repair, which refolds or degrades damaged proteins. Cells also utilize autophagy to remove dysfunctional components, ensuring proper cellular function. Another important aspect of cellular repair is the response to stress, such as oxidative stress or UV radiation. Cells can activate pathways that enhance their ability to cope with damage, promoting survival and recovery. These mechanisms are crucial for preventing diseases, including cancer, and for maintaining overall cellular health.