When your baby stop put everything into their mouth?

Your baby is likely to go on putting things in her mouth well into her second year. However, bynine months to 10 months she will start to use her hands more. By 12 months she will become increasingly interested in what her toys can do. By the time she's two years old, your child will use her fingers to explore most of the time. And by the age of three years, most children have stopped putting objects into their mouths.