This study was conducted to measure the concentration of calcium in the serum of diabetic patients, calcium is one of the trace elements, by studying 50 samples representing the group of patients divided into three groups by age groups, the first group of age (4-20) years, the second group of the age of (21-50) years, the third group age     (51-75) Year of both sexes compared to 30 samples taken from healthy individuals as a control group. The concentration of calcium was measured for patients and healthy people.
Aim:- This study aimed to measure and compare the serum levels of calcium in normal individuals and diabetic patients.