Most common cause of cell Injury at level of cells?

Hypoxia Deficiency of oxygen,which causes cell injury by reducing aerobic oxidative respiration Extremely impoant and most common cause of cell injury and cell death. Causes:- Reduced blood flow (ischemia) Cardiorespiratory failure Anemia or carbon monoxide poisoning or after severe blood loss (Decreased oxygen-carrying capacity of the blood). Depending on the severity of the hypoxic state, cells may adapt, undergo injury, or die.