The significance of type I collagen carboxyterminal prepeptide measurement is to reflect the synthesis of type I collagen and bone turnover. Type I collagen carboxyterminal prepeptide measurement can observe the bone transformation in children during the developmental period and the last trimester of pregnancy, and can analyze whether there is a significant increase in type 1 collagen carboxyterminal prepeptide or not. Under normal circumstances, the index of type 1 collagen carboxy-terminal prepeptide is 50-200ug/L. If it is higher or lower than the highest or lowest index, it is abnormal, which suggests that bone cell activity and bone formation may be abnormal. The day before the measurement of type I collagen carboxyterminal prepeptide requires fasting and no strenuous exercise. If you have any doubts about the test, you should consult your doctor first and perform the test according to the doctor’s instruction.