<s>[INST] My 10 month old occasionally has a stool that smells very strongly of burnt rubber. There do not seem to be any other symptoms associated with this; the baby does not seem sick; and I don t think it s a real problem, but wonder what could be causing this. [/INST] Hi...if the baby is growing well and feeding well and gaining weight well then you need not worry at all. Usually the smell of the stools is determined by the ingredients in the food. if you have been observing this off late and try to recollect if you have changed or added anything in the baby's diet.Regards - Dr. Sumanth </s>