Dyskinetic CP — also called athetoid CP — is characterized by involuntary movements and fluctuating muscle tone. Caused primarily by basal ganglia injury, it produces a distinctly different motor pattern than the stiffness of spastic CP.
Dyskinetic cerebral palsy is a complex and challenging condition in the broader spectrum of cerebral palsy types. It is primarily characterized by involuntary movements and significant variations in muscle tone — substantially impacting the lives of those affected. As a neurological disorder, dyskinetic CP presents unique challenges in both diagnosis and management.
Understanding the condition is crucial for improving the quality of life of affected individuals. This page covers symptoms, causes, diagnosis, and treatment options — with attention to what distinguishes dyskinetic CP from spastic CP and other forms.
Symptoms of athetoid CP — a form of dyskinetic CP — are primarily characterized by involuntary movements and fluctuating muscle tone. Unlike spastic CP, individuals experience a mix of hypertonic (high tone) and hypotonic (low tone) episodes.
These variations make muscle control and coordination challenging. Involuntary movements — often slow and writhing — can affect any part of the body, including the face, arms, legs, and torso. The movement disorder significantly impacts motor skills, making tasks like writing, dressing, or even sitting still quite difficult.
Athetoid movements are involuntary and often present as slow, writhing motions. They differ markedly from the stiff, jerky movements of spastic CP:
Understanding these movements helps differentiate dyskinetic CP from other CP types and guides appropriate treatment planning.
Speech difficulties are a common symptom of dyskinetic CP. The involuntary movements affect the muscles needed for speech, leading to:
These challenges can complicate communication and often benefit from speech therapy to improve articulation and clarity. Augmentative and alternative communication (AAC) technology — from picture boards to eye-gaze devices — can provide alternative means of expression. Crucially, speech difficulties don’t reflect cognitive ability; many people with dyskinetic CP have typical or above-average intelligence trapped behind a movement disorder.
Causes are varied and often involve a combination of genetic and environmental factors. The defining feature is damage to the developing brain — particularly the basal ganglia, which coordinates movement.
Advances in diagnostic techniques have improved early identification of these causes — enabling more effective intervention and treatment strategies. While genetic factors play a role, birth complications are also significant contributors.
Genetic factors can influence the development of dyskinetic CP, though they’re not the sole contributors:
While not all cases are genetic, when family history points to neurological conditions, genetic counseling can be informative.
Birth complications are a significant cause of dyskinetic CP. The basal ganglia is particularly vulnerable to oxygen deprivation, so the specific causes include:
Medical advancements have improved management of high-risk pregnancies and deliveries, reducing the incidence of birth-related complications. Untreated severe jaundice is now rare in developed countries thanks to bilirubin screening — but it remains a leading preventable cause where screening is missed.
Treatment is comprehensive — aimed at managing symptoms and improving quality of life. Because dyskinetic CP involves fluctuating muscle tone rather than constant stiffness, treatment looks different than for spastic CP.
Living with dyskinetic CP can be demanding, but with the right combination of therapy, medication, and support, individuals can achieve greater independence and meaningful participation in daily life.
Physical therapy and occupational therapy are cornerstone treatments:
Tailored therapy plans, often developed by a multidisciplinary team, consider the unique needs of each individual — ensuring that goals are achievable and meaningful.
Because dyskinetic CP often impacts speech but not cognition, AAC matters:
Medications can help manage symptoms by reducing involuntary movements and modulating tone:
These options require careful evaluation by specialists who weigh potential benefits against risks. A comprehensive plan that integrates medication and (when needed) surgical options can produce significant improvements in symptom management.
Diagnosis requires a thorough understanding of the condition and the use of various assessment tools. Early diagnosis is crucial for implementing effective management strategies and improving outcomes.
A comprehensive diagnosis is multidisciplinary — pediatricians, neurologists, and therapists collaborating to ensure a holistic understanding of the child’s condition. See how cerebral palsy is diagnosed for the broader workup.
Neurological assessments are essential. These techniques involve detailed evaluations of:
Neuroimaging like MRI provides insights into brain structure and function. Findings in dyskinetic CP often show basal ganglia and thalamic injury — the classic pattern of severe HIE. Early and accurate diagnosis allows timely intervention.
Distinguishing dyskinetic CP from spastic or quadriplegic CP is important for treatment planning:
Understanding the nuanced differences through clinical assessment and symptom evaluation aids accurate diagnosis. Proper identification ensures that individuals receive appropriate therapeutic interventions tailored to manage specific symptoms.
Two leading preventable causes of dyskinetic CP — severe untreated jaundice (kernicterus) and oxygen deprivation at birth (HIE) — can sometimes be traced to missed screening or delayed delivery intervention. If your child’s dyskinetic CP followed either, the case may warrant a medical malpractice review. Request a free case review.
Dyskinetic cerebral palsy — also known as athetoid cerebral palsy — is a type of CP characterized by involuntary and uncontrolled movements. It affects the muscle tone and movement of the hands, arms, feet, and legs, making tasks like sitting and walking challenging.
Dyskinetic CP is typically diagnosed through a combination of physical examinations, medical history reviews, and imaging tests like MRI or CT scans. Early diagnosis is crucial for effective management and therapy.
Dyskinetic CP is primarily caused by damage to the basal ganglia, the part of the brain responsible for regulating voluntary motor movements. This damage can occur due to factors such as birth asphyxia, severe jaundice (kernicterus), genetic conditions, or prenatal infections.
Treatment often includes a combination of physical therapy, occupational therapy, speech therapy, and medications to manage symptoms. In some cases, surgical interventions may be considered to address specific complications or improve movement.
Yes — individuals with dyskinetic CP may also experience comorbidities such as hearing impairments, difficulties with breathing and feeding, drooling, and sleep disorders. Addressing these conditions is an essential part of comprehensive care.
Families can support a child with dyskinetic CP by ensuring they receive appropriate therapies and medical care, advocating for educational needs, and providing a supportive home environment. Joining support groups and seeking guidance from specialists can also be beneficial.
Kelsey is an experienced surgical nurse who works extensively with pediatric patients and families navigating birth injuries and cerebral palsy diagnoses. She is licensed by the Missouri Board of Nursing and operates under the Nurse Licensure Compact, allowing her to practice across compact-member states. As both a mentor and patient advocate, Kelsey focuses on safety, communication, and compassionate care — helping families understand medical procedures, treatment options, and the realities of pediatric conditions.
View Kelsey Pabst, RN's full bio →
Our nurses, patient advocates and legal experts are solely focused on bringing you the latest cerebral palsy information, options for financial assistance and access to community support.
Editorial process →