Stinky green stools from hydrolyzed milk powder are not normal and suggest the presence of indigestion. Under normal circumstances, after eating hydrolyzed milk powder should be solid yellow or dark yellow stools. If you have a green stool with a foul odor, it means that the nutrients of the milk powder can not be digested and absorbed in the gastrointestinal tract in a timely manner. The body is suffering from indigestion. Parents are advised to take their children to the pediatrician of the hospital. You can take intestinal probiotics, such as bifidobacteria, lactobacillus, etc., which can help regulate the intestinal flora and promote the digestion and absorption of food. Normally, when you feed your child milk powder, you can take less food and more meals, not to increase the burden of digestion and absorption of the gastrointestinal tract.