In September 2021 at least 21 babies under four weeks old died, a rate of 4.9 per 1,000 births. And in March at least 18 died, the equivalent of 4.6 per 1,000 births.
Public Health Minister Marie Todd said: “Every death is a tragedy for the families involved, that is why earlier this year I committed to this review to find out if there is a reason for the increase.
“I appreciate how difficult this time is for anyone affected and I would encourage them to access support if they wish to do so.”
She added information about organisations and help was available on the National Bereavement Care Pathways Scotland and Scottish government websites.
Ms Todd said anything identified would feed into recommendations and actions to improve the quality of care for mother and babies.