Do you mean like itchy red bumps along either side of your scar? it could be the holes made by the stitches or if you had metal clips it was made by them,and they really do itch in the early days after surgery as your skin and scar are still healing,
i had metal clips closing mine and i do remember the itchy red bumps around it so well drove me crazy! so if caused by the way your wound was closed then yes it is normal,the doctor would have said if you had any problems with it and would have noticed anything unusual but he didn't,
i still have my bumps now but they have turned silver all normal and caused by my metal clips,so if your surgery is recent then the itching is your skin healing and when it heals it sure does itch,plus new scars are red and pink but try to resist scratching them though it will only make it itch all the more,i know it is not easy as it really does itch!,
good news mine no longer itch so it does go away in around a year or less,so the itching though its normal if annoying at times its actually a good sign it shows healthy healing of your scar,but by all means mention it to your doctor if you feel it will reassure you more.
My experience after scoliosis surgery.