Sepsis can cause elevation of ferritin, but generally does not cause elevation of CD25, which needs to be combined with all other indicators of the body for comprehensive judgment and standardized treatment. Sepsis is an infectious disease in which bacteria enter the bloodstream and multiply in the bloodstream. The corresponding disease may cause cellular damage, which further leads to the entry of intracellular ferritin into the bloodstream, causing ferritin to rise. CD25 is regulated by the immune system and the corresponding process does not cause a rise in this indicator. Clinically significant fever, chills, multiple infections throughout the body, and abnormalities in blood counts through blood sampling require prompt medical observation and standardized treatment under the guidance of a clinician to avoid delays in the condition.