If my serum increased but within normal range is it certain i will develope ckd?so worried to have ckd.

No: You will not except if you have some predisposing condition like autoimmune disease or some for infections are hereditary conditions. The rise in creatinine may result from comsumption excessive protein or protein supplements.

No, ...: Serum creatinine is a rough indicator for kidney function used in medical practice and correlated with the amount of lean muscle of the body. Its value tends to be higher in young muscular person and lower in the elderly and ones with cachexia or emaciation. Remember: its value starts to reflect after losing some 65% of normal healthy tissue of kidneys. So, it's important to know what is behind it.