Pediatric Hypotonia

Pediatric Hypotonia



Hypotonia means low muscle tone due to the progressive loss of muscle strength over time.

Expanded overview

Hypotonia, also called floppy muscle syndrome, is a condition that involves the progressive loss of muscle tone over time. Some infants (birth to 1 year*) are born with hypotonia, and some children develop hypotonia as a symptom of another condition.


Conditions that may cause hypotonia include:


Symptoms of hypotonia may include:

  • Delayed fine motor skills in children, such as grasping a crayon
  • Delayed gross motor skills in infants, such as holding up head, sitting or crawling
  • Feeding problems, such as trouble sucking or chewing
  • Floppy muscles
  • Frequent hip, jaw and neck dislocation
  • Lack of head control as an infant
  • Shallow breathing
  • Speech delay and speech problems

*Age of infants as defined by the World Health Organization (WHO).

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