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Overview

What Is Cerebral Palsy?

Cerebral palsy is a group of neurological conditions that affect movement, posture, muscle control, and coordination. It results from abnormal development of, or injury to, the developing brain. Cerebral palsy begins in childhood, and its effects can range from mild to more significant. Each person is affected differently, depending on which areas of movement and function are involved.

Symptoms

Cerebral Palsy Symptoms

Cerebral palsy symptoms are differences in movement, posture, muscle tone, coordination, or development. Signs may become noticeable during infancy or early childhood, although some are recognized later as physical demands increase. The signs of cerebral palsy depend on the person’s movement pattern and the parts of the body affected.

  • Muscle stiffness (spasticity) can make movement difficult.
  • Involuntary movements (dyskinesia) can affect controlled actions.
  • Poor coordination (ataxia) can interfere with balance and precise movement.
  • Delayed milestones can affect sitting, crawling, standing, or walking.
  • Unusual walking patterns can include toe walking or uneven steps.
  • Difficulty with speech can make sounds or words harder to produce.
  • Difficulty with swallowing can affect eating and drinking safely.
  • Low muscle tone can make the body feel unusually floppy.
  • Abnormal reflexes can affect posture and movement.

How Movement Patterns Can Differ

Severity and body involvement vary widely. Mild cerebral palsy may affect only a small part of one side of the body, while other forms may mainly involve the legs or all four limbs, as in spastic quadriplegic cerebral palsy. A single developmental difference does not confirm cerebral palsy. Symptoms may become more or less noticeable as a child grows, even though the original brain injury or developmental difference is not progressive.

Causes

What Causes Cerebral Palsy?

Cerebral palsy may result from disrupted brain development before birth or from an injury to the developing brain before, during, or shortly after birth. These changes can affect the brain areas that control movement, posture, and coordination. In many cases, no single cause can be identified.

  • Premature birth can interrupt important stages of brain development.
  • Reduced oxygen or blood flow to the brain can injure developing brain tissue.
  • Infection or inflammation can affect the developing brain.
  • A stroke can damage areas involved in movement and coordination.
  • A brain malformation can alter how movement-control areas develop.
  • Inherited or genetic factors may contribute to some cases.

Risk Factors

Risk Factors for Cerebral Palsy

Risk factors can increase the likelihood of cerebral palsy, but they do not mean that a child will develop it. Some children develop cerebral palsy without any recognized risk factor, and having a risk factor does not prove what caused the condition.

  • Premature birth is associated with a higher likelihood of cerebral palsy.
  • Low birth weight can increase vulnerability to complications affecting brain development.
  • Multiple birth, such as twins or triplets, is associated with increased risk.
  • Complications affecting oxygen or blood flow can injure the developing brain.
  • Newborn infection can affect the brain and increase risk.
  • Maternal infection during pregnancy may affect fetal brain development.
  • Untreated severe jaundice can cause brain injury in newborns.

Context

Risk does not equal cause

Many risk factors are medical or cannot be changed, and cerebral palsy is not reliably prevented through parental behavior alone. Prenatal care and prompt treatment of newborn complications are important, but families should not assume they caused the condition.

Complications

Cerebral Palsy Complications

  • Contractures can limit joint movement when muscles and tendons become shortened.
  • Hip displacement can occur when muscle imbalance affects the hip joint.
  • Scoliosis can cause an abnormal sideways curve of the spine.
  • Pain can result from muscle tightness, joint stress, or fatigue.
  • Seizures can occur when abnormal brain activity causes repeated episodes.
  • Swallowing problems can increase the risk of choking or poor nutrition.
  • Constipation can occur because of limited mobility, diet, or medication.
  • Dental disease can result from oral-motor difficulties or trouble with brushing.
  • Vision difficulties can affect focusing, eye movement, or visual processing.
  • Hearing difficulties can affect communication and learning.
  • Sleep problems can be linked to pain, muscle spasms, or breathing concerns.
  • Communication challenges can make it harder to express needs or participate.

Complications depend on the type and severity of cerebral palsy and on the person’s overall health. Regular monitoring, therapy, adaptive equipment, and coordinated care can help prevent or reduce many problems and support daily activities.

Diagnosis

How Is Cerebral Palsy Diagnosed?

Clinicians assess developmental milestones, muscle tone, reflexes, posture, coordination, movement patterns, and functional abilities. They also review the child’s medical and developmental history and may observe movement over time. Follow-up can be important because some signs of cerebral palsy become clearer as a child grows and develops new skills.

  • Brain MRI can show differences or injury in developing brain tissue.
  • Standardized developmental or motor assessments can measure movement and functional skills.
  • Vision evaluations can identify problems that affect movement and learning.
  • Hearing evaluations can identify problems that affect communication and development.
  • Blood tests or genetic tests may help rule out other conditions when appropriate.

Treatment & Management

Treatment and Management of Cerebral Palsy

There is no cure that reverses the underlying brain difference in cerebral palsy, but treatment can improve function, independence, comfort, communication, and quality of life. Plans are individualized according to movement pattern, age, abilities, health needs, and personal goals. Management may also help prevent or treat complications.

ApproachMain purpose
Physical and occupational therapyBuild movement skills, strength, balance, flexibility, and independence with daily activities.
Speech and feeding therapySupport communication, safe swallowing, eating, and oral-motor skills.
Orthoses and mobility devicesImprove positioning, walking, balance, safety, and access to school or community activities.
Medicines or injectionsReduce spasticity, dystonia, muscle discomfort, or pain when appropriate.
Orthopedic surgeryAddress selected problems involving muscles, tendons, bones, or joints.
Educational and community supportsPromote learning, participation, accessibility, communication, and social inclusion.

Coordinated, Long-Term Care

Outlook and Prognosis

Outlook and Prognosis for Cerebral Palsy

Cerebral palsy is lifelong, and the original brain injury or developmental difference does not worsen. However, muscle stiffness, pain, mobility, communication, and daily support needs can change as a person grows and ages. Ongoing care can help maintain function, comfort, participation, and independence.

  • The type and distribution of movement differences can influence mobility and daily activities.
  • Cognitive abilities can affect learning, planning, and independence.
  • Communication abilities can influence participation and access to support.
  • Seizures can affect health, safety, and daily routines.
  • Swallowing problems can affect nutrition, hydration, and respiratory health.
  • Access to therapy can support movement, communication, and self-care skills.
  • Assistive technology can improve mobility, communication, education, and independence.
  • Social support can affect participation, emotional health, and quality of life.

When Should You See a Doctor

When Should You See a Doctor?

  • Arrange an evaluation for missed developmental milestones.
  • Arrange an evaluation for persistent unusual muscle stiffness.
  • Arrange an evaluation for persistent floppiness or low muscle tone.
  • Arrange an evaluation for asymmetrical movement.
  • Arrange an evaluation for delayed sitting or walking.
  • Arrange an evaluation for frequent falls.
  • Arrange an evaluation for new loss of previously acquired skills.
  • Arrange an evaluation for feeding or swallowing concerns.
  • Arrange an evaluation for seizures.
  • Arrange an evaluation for unexplained pain.

Seek prompt care

Know when symptoms need urgent attention

Seek urgent or emergency care for breathing difficulty, choking, a prolonged or repeated seizure, sudden weakness, sudden loss of previously acquired abilities, or a serious injury.

Families should share developmental concerns with a pediatrician or primary care clinician even when symptoms seem mild. Early assessment can help connect a child or adult with appropriate evaluation, therapy, equipment, and support.

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