The high iron in the laboratory test is good or not needs to be considered in conjunction with the actual situation of the patient, if the patient is asymptomatic, does not exclude the error of the laboratory test; if there are symptoms, need to be examined in a timely manner to clarify the cause of the disease. Serum iron refers to the iron bound to transferrin, and its level is not only related to the serum iron content, but also affected by transferrin. It has a certain normal value range in the human body, the normal value range for men is 10.6~36.7umol/L, the normal value range for women is 7.8~32.2umol/L, and the normal value range for children is 9.0~22.0umol/L. Increased serum iron may indicate certain diseases of the body, such as iron utilization disorders related to iron granulocytic anemia and other diseases, increased iron release related to hemolytic anemia and other diseases, increased ferritin related to leukemia and other diseases, and diseases related to excessive iron intake (e.g., overdose of iron therapy, etc.). If increased serum iron is found in laboratory tests, it is recommended to seek prompt medical attention to clarify the diagnosis and avoid delays.