4-Month-Old Baby: Milestones and Development Quiz

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This quick and fun 4-Month-Old Baby: Milestones and Development Quiz helps you find out whether your baby is on track? By four months old, your baby is starting to show more personality, movement, and communication.

Check out the 4-Month Milestones to Look For. Answer these 15 questions based on the CDC’s “Learn the Signs. Act Early.” program to check your baby’s developmental milestones. Click “Check Milestones” to see results and tips! This quiz is for fun and guidance, not a medical diagnosis.

4-Month-Old Baby: Milestones and Development Quiz

4-Month Baby Milestone Quiz

1. Does your baby smile spontaneously, especially at people?

2. Does your baby like to play with people and cry when playing stops?

3. Does your baby copy some facial expressions, like smiling or frowning?

4. Does your baby begin to babble?

5. Does your baby babble with expression or copy sounds they hear?

6. Does your baby cry in different ways to show hunger, pain, or being tired?

7. Does your baby let you know if they are happy or sad?

8. Does your baby respond to affection, like hugs or smiles?

9. Does your baby reach for a toy with one hand?

10. Does your baby use their hands and eyes together, like seeing a toy and reaching for it?

11. Does your baby follow moving things with their eyes from side to side?

12. Does your baby watch faces closely?

13. Does your baby hold their head steady without support?

14. Does your baby push down on their legs when their feet are on a hard surface?

15. Can your baby roll over from tummy to back?

*Note: This quiz is based on CDC’s “Learn the Signs. Act Early.” program but is not a substitute for standardized developmental screening. Always consult your child’s doctor for professional advice. For more, visit cdc.gov/ActEarly.

4 Month old baby milestones

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Hi, I'm Iva — mom, hobby herbalist, and the voice behind Toddler in Action. I hold a Master's in Economics and worked as a tax advisor. I walked away from my corporate career to stay home with my child — and that one decision changed everything: I've started a blog, homeschooled, co-founded Livingston Global Academy with my husband, and learned to heal my kid naturally when medication wasn't an option. I share our first-hand experience as we go — the real life - messy, meaningful, and everything in between.

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