Developmental milestones record - 6 months

Alternative names 
Normal childhood growth milestones - 6 months; Childhood growth milestones - 6 months; Growth milestones for children - 6 months

This article describes the skills and growth markers relevant to 6 month-old infants.


Physical and motor-skill markers:

  • Should have doubled birth weight (birth weight often doubles by 4 months, and it would be concerning if it hasn’t happened by 6 months)  
  • Able to lift chest and head while on stomach, bearing the weight on hands (often occurs by 4 months)  
  • Able to sit in a high chair with a straight back  
  • Beginning of teething  
  • Increased drooling  
  • Able to bear almost all weight when supported in a standing position  
  • Able to roll from back onto abdomen  
  • Able to hold own bottle (but many babies won’t do it or only for short periods)  
  • Able to pick up a dropped object

Sensory and cognitive markers:

  • Vision is between 20/60 and 20/40  
  • Can locate sounds not made directly at the ear  
  • Prefers more complex sound stimulation  
  • Starts to imitate sounds  
  • Sounds resemble one-syllable words  
  • Enjoys hearing own voice  
  • Makes sounds to mirror and toys  
  • Begins to fear strangers  
  • Recognizes parents  
  • Begins to imitate actions  
  • Begins to realize that if an object is dropped, it is still there and just needs to be picked up

Play recommendations:

  • Provide a mirror that is unbreakable  
  • Provide large, bright colored toys that make noise or have moving parts  
  • Play peek-a-boo  
  • Provide paper to tear  
  • Speak clearly  
  • Imitate words such as “mama” to facilitate learning of language  
  • Start naming parts of the body and the environment  
  • Use the word “no” INFREQUENTLY  
  • Use body movements and actions to teach language


Johns Hopkins patient information

Last revised: December 5, 2012
by Potos A. Aagen, M.D.

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