Normal patterns of physical growth

 

Weight:

  • Baby’s weight usually will reduce slightly in the first 10 days of life and slowly increase after that.
  • Birth weight doubles at about 4 month old, triples at 12 month old and quadruples at 24 month old
  • During second year, average weight gain = approximately 0.25 cm per month
  • After age 2 year, average annual gain until adolescence= approximately 2-3 Kg (5-7 lb)

 

Length / height:

  • By end of first year increase about 50% height at birth
  • Birth length doubles by 4 years, triples by 13 years
  • During second year = increase about 12 cm (5 inches)
  • After age 2 years, annual  growth = approximately 5 cm per year

 

Head circumference:

Average head growth:

  • 0-2 mo= approximately 0.5cm per week
  • 2-6 mo = approximately 0.25 cm per week

 

Average total head growth:

  • 0- 3 mo = 5cm
  • 3-6 mo = 4cm 
  • 6-9 mo= 2 cm   
  • 9 mo-1 yr = 1cm

 

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