What Causes It?
Brain damage during fetal development - Including genetic abnormalities, maternal infections, or insufficient oxygen reaching the fetal brain.
Prenatal stroke - Disruption of blood supply to the developing brain.
Maternal infections - Such as rubella, cytomegalovirus, toxoplasmosis, or Zika virus during pregnancy.
Maternal fever during pregnancy - Particularly with infections like urinary tract infections.
Placental problems - Affecting oxygen and nutrient delivery to the fetus.
Rh incompatibility - When mother and baby have different blood types, leading to antibody development that damages fetal red blood cells.
Maternal exposure to toxins - Including certain medications, drugs, or environmental hazards during pregnancy.
Brain injury during birth - Due to prolonged oxygen deprivation (asphyxia) or trauma during delivery.
Severe jaundice - Untreated high levels of bilirubin that damage brain cells.
Brain infections in early infancy - Such as meningitis or encephalitis.
Traumatic brain injury - From accidents, falls, or abuse in infancy.
Premature birth - Especially very premature infants (less than 28 weeks gestation).
Low birth weight - Particularly infants weighing less than 1500 grams (3.3 pounds).
Multiple births - Twins, triplets, or higher multiples have increased risk.
In many cases, the specific cause remains unknown despite thorough investigation.
Signs & Symptoms
Symptoms vary widely based on type, severity, and affected body areas, but may include:
Delayed motor milestones - Late rolling over, sitting, crawling, or walking.
Abnormal muscle tone - Either too stiff (hypertonia/spasticity) or too floppy (hypotonia).
Abnormal posture - Unusual positions when sitting, crawling, or standing.
Coordination problems - Awkward or jerky movements.
Stiff muscles with exaggerated reflexes (spasticity) - The most common movement disorder in CP.
Involuntary movements - Slow, writhing movements or rapid, jerky movements.
Tremors or involuntary shaking.
Balance and coordination problems (ataxia) - Unsteady walking and difficulty with precise movements.
Favoring one side of the body - Using primarily one hand or dragging a leg when crawling.
Difficulty with fine motor tasks - Such as buttoning clothes or picking up small objects.
Difficulty with oral motor functions - Affecting speech, eating, or swallowing.
Speech difficulties (dysarthria) - Due to problems controlling facial and oral muscles.
Excessive drooling - Due to poor control of mouth and throat muscles.
Seizures - Occur in about 30-50% of individuals with CP.
Associated conditions may include:
Intellectual disabilities - Present in about 30-50% of people with CP.
Vision and hearing problems.
Sensory processing issues.
Behavioral or emotional challenges.