The health of a child’s digestive system is one of the top concerns for parents caring for young children. A healthy digestive system lays the foundation for a child’s overall development. But when does a child’s digestive system become fully developed?

The condition of babies spitting up milk through the nose happens very often because their stomach is still horizontal.Although it rarely can be too dangerous, mothers should still be careful to prevent milk from entering the respiratory tract, causing difficulty breathing, even too severe causing death.

Children often get sick during weaning time from 6 months to 3 years old, a common condition that many parents encounter but have not found the cause to. Is it because the child's immune system is weakened? When is a child's immune system fully developed?