🧸 Development
Toddler development, stage by stage
Toddler development stage by stage, from 12 months to 4 years — physical, language, social and emotional milestones, feeding, sleep and what to focus on. General, NHS-aligned and answer-first.
12-18 months First steps and first words → 18-24 months The word explosion and the will begins → 2-2.5 years Short sentences and the 2-year molars → 2.5-3 years Proper conversations and pretend worlds → 3-3.5 years Longer stories and growing independence → 3.5-4 years Getting ready for the next big step →
Every child is different, and milestones arrive across a wide, healthy range of ages. This is general information, not medical advice — your health visitor and the NHS Start for Life guidance are your sources for personal advice.