Developmental milestones

Developmental milestones

Developmental milestones are tasks most children learn, or physical developments, that commonly appear in certain age ranges. For example:

* Ability to lift and control the orientation of the head (Neck control) is attained at about 3 months
* Crawling begins at about 7 months
* Walking unsupported is attained at about 12 months
* Speech begins
* Voice lowers in pitch (especially noticeable in boys)
* Pubic hair appears
* Genitals and reproductive organs mature
* Menses begin (females)
* Body hair and facial hair appears

"Normal" age ranges for many milestones are broad (a factor of 1.5 - 2 from bottom to top is possible). For this and other reasons, a single delayed milestone, especially task-related, is rarely in itself a basis for diagnosing a problem.

Note: the Tanner stages can be used to approximately judge a child's age based on physical development.

Note: the age ranges and the developmental milestones are based loosely on majority growth, implications of the majority can provide a wide variance to actual age.

ee also

* Delayed puberty
* Mental retardation
* Delayed milestone

External links

* [http://www.cdc.gov/ncbddd/autism/actearly/default.htm CDC's "Learn the Signs. Act Early.” campaign] - Information for parents on early childhood development and developmental disabilities
* [http://www.med.umich.edu/1libr/yourchild/devmile.htm UMich]
* [http://www.nidcd.nih.gov/health/voice/speechandlanguage.asp NIH]
* [http://www.marchofdimes.com/pnhec/298_10203.asp March of Dimes]


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