Infant Development: 1st month milestones

In just a matter of weeks your baby will go through many changes right before your eyes. That’s because your little bean is budding into their own unique little being and pretty soon they will have a personality that is all their own.


Here are few traits and what you can expect during your baby’s first month milestones.

1st Month Infant Development Skills

  • Can lift head for a brief amount of time
  • When lying on back, can turn head from side to side
  • Has a strong grasp reflex
  • Can see and follow an object moving in front of them within a 45-degree range
  • Able to see patterns in contrasting colors such as black and white stripes
  • Expresses needs or displeasure through crying (and a lot of it!)
  • Focuses on mom or dad when talking to them

These are just a few of the things you can expect in your baby during the first month of infant development. This is according to an average, full-term baby (See also Preemies). Your baby may do some or even hit all of the above listed developmental milestones by the end of their first month. Some babies take a little longer to develop certain skills while others advance a little more quickly.

Other Infant Development Skills Your Baby May Be Doing

Because babies develop at their own rates, some will achieve certain milestones sooner than others. Here are some additional skills your baby may accomplish this month.

  • Lift head to 45-degrees while on tummybaby on pillow
  • Holds head steady while upright
  • Can bring both hands together
  • Smile spontaneously
  • Socialize in ways other than crying: coos, smiles in response to your smile

By the end of their first month, babies will likely quiet and turn towards a voice when heard or possibly respond in some way to certain sounds such as a bell or the TV. Your baby will most likely have a well-baby check up by the end of their first month, typically between 2 and 4 weeks.

1st Month Well-Baby Exam

Your baby’s pediatrician will do an assessment on your child to check ¬†infant developmental milestones or delays. During this time you can address any issues or concerns you may have with the doctor. Many doctors have different techniques for performing physical exams, though this is what you can expect at your baby’s first check-up:

  • Baby’s measurements: weight, length and head-circumference
  • Take baby’s vitals: temperature, listening to heart sounds
  • Check baby’s eyes, ears, nose, and throat
  • Genitalia for any abnormalities
  • Baby’s overall movement and behavior

At your baby’s initial visit, some things you should discuss with the doctor include immunizations (most babies will receive their first Hepatitis vaccine while in the hospital), circumcision for boys, Vitamin D supplementation, as well as any other questions you may have.

Further Reading: Infant Development: 2nd month milestones

Reference: Ages and Stages Baby, Baby Milestones

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