Green stool followed by soft yellow stool is usually normal in a 3-month-old, especially with formula feeding. Constipation means hard, dry or painful stools, not simply green or less frequent stools.
Next Steps
• Continue breast milk + usual formula.
• Prepare formula exactly as directed—do not add extra powder.
• Avoid water, juice, gripe water or laxatives
Health Tips
If stools become repeatedly hard/pellet-like, painful, or are associated with vomiting, abdominal swelling, blood in stool or poor feeding , consult your pediatrician.