Six months baby stool breastfeeding is mostly yellow and paste or granular, formula-fed baby stool color is mostly yellowish or grayish yellow. 1. Breastfeeding: breastfed baby stools are mostly yellow or golden yellow, the state of most of the paste or fecal pellets, and accompanied by a sour smell, stools about two to four times a day. 2. formula feeding: formula feeding babies stool color is mostly light yellow or grayish yellow, if the intake of water is less, the stool may appear dry, thickening phenomenon. At the same time, milk powder also contains a large amount of milk protein, easy to cause the stool in the obvious odor, the number of bowel movements is generally a day or two or three days once. If your six-month-old baby has an increase in the number of bowel movements, watery stools, fishy odor, or mucus, pus, blood or blood in the stools, it is abnormal and you should seek medical attention promptly to avoid delay. It is best to bring the stool directly to the hospital for testing to aid in diagnosis and treatment.