Normal childhood growth milestones - 4 months; Childhood growth milestones - 4 months; Growth milestones for children - 4 months; Well child - 4 months
Typical 4-month-old infants are expected to develop certain physical and mental skills. These skills are called milestones.
All children develop a little differently. If you are concerned about your child's development, talk to your child's health care provider.
PHYSICAL AND MOTOR SKILLS
The typical 4-month-old baby should:
- Slow in weight gain to about 20 grams (almost two thirds of an ounce) per day
- Weigh 2 times more than their birth weight
- Have almost no head droop while in a sitting position
- Be able to sit straight if propped up
- Raise head 90 degrees when placed on stomach
- Be able to roll from front to back
- Hold and let go of an object
- Play with a rattle when it's placed in their hands, but won't be able to pick it up if dropped
- Be able to grasp a rattle with both hands
- Be able to place objects in the mouth
- Sleep 9 to 10 hours at night with 2 naps during the day (total of 14 to 16 hours per day)
SENSORY AND COGNITIVE SKILLS
A 4-month-old baby is expected to:
- Have well-established close vision
- Increase eye contact with parents and others
- Have beginning hand-eye coordination
- Be able to coo
- Be able to laugh out loud
- Anticipate feeding when able to see a bottle (if bottle-fed)
- Begin to show memory
- Demand attention by fussing
- Recognize parent's voice or touch
You can encourage development through play:
- Place the baby in front of a mirror.
- Provide bright-colored toys to hold.
- Repeat sounds the infant makes.
- Help the infant roll over.
- Use an infant swing at the park if the baby has head control.
- Play on the stomach (tummy time).
American Academy of Pediatrics website. Recommendations for preventive pediatric health care. www.aap.org/en-us/Documents/periodicity_schedule.pdf. Updated February 2017. Accessed November 14, 2018.
Feigelman S. The first year. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 10.
Marcdante KJ, Kliegman RM. Normal development. In: Marcdante KJ, Kliegman RM, eds. Nelson Essentials of Pediatrics. 8th ed. Philadelphia, PA: Elsevier; 2019:chap 7.