Baby’s stools are sour and smelly with milk petals, considering indigestion. Normal breastfed babies have yellow or golden yellow stools, uniformly creamy, or with a few yellow stool particles, occasionally slightly dilute and slightly greenish, not smelly, with a sour taste, 2-4 times a day. Formula-fed babies have yellowish, dry, thicker stools, 1-2 times a day. Foul smelling stools indicate protein indigestion. Acidic, frothy stools are indicative of sugar indigestion. A creamy appearance indicates indigestion of fatty substances. Milk petals in the stool are soap clumps synthesized from undigested fat and calcium or magnesium, and are of no clinical significance if the amount is not large.