A toddler is a child approximately 1 to 3 years old, though definitions vary. [1][2][3] The toddler years are a time of great cognitive, emotional and social development.

Jan 8, 2025 · Newborn usually refers to a baby from birth up to 2 or 3 months of age. Infant can refer to children anywhere from birth to 1 year old. Toddler usually refers to a child who is 1 to 3 years old.

Your child is a toddler between their first and third birthdays. During that time, they should grow and develop new abilities and meet certain milestones.

Jun 11, 2025 · Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move.

Read about toddler development, including how to deal with everything from picky eaters to tantrum-throwers.

Here's how to care for your toddler, understand your little one's changing body and behavior, get tips for play and activities, and more.

During this time, his or her physical growth and motor development will slow, but you can expect to see some tremendous intellectual, social, and emotional changes. Is your toddler due for a check-up? …