My 6 month old bus constantly constipated, i have changed his formula from nan perlagon to s26 gold. i have also given him lascon 5ml daily for the past 4days, his poo remains black. i'm worried.

See Your Doctor Now: Constipation can occur in a 6 month old however there are medical conditions at this age that must be considered if this has been a recurrent problem. Your baby’s past medical history must be explored as well as feeding and diet history. Iron-containing formula can cause darkened stools however blood can also cause black stools. See your doctor now for proper diagnosis and management.