Is Hair Surrounding a Scar Supposed to Be Thinner?

i have a 1 inch scar on my head just above temple. my hair surrounding the scar is thinner than the corresponding hair on the otherside.

i was wondering is it normal for hair to be thinner around a scar.

It may be just a perception of thinning hair, because you have less hair on the scarred area. I doubt that each individual hair strand diameter is thinner. In other words, when you got your scar you may have lost some surrounding hair contributing to less ‘bulk’ of hair in the region.