Is cerebellar hypoplasia a congenital condition?

Cerebellar hypoplasia typically appears at birth or in early life and is most often caused by congenital factors or disruptions during early development; infection or toxic exposure may also play a role. Discuss your pet's history and any necessary tests with your vet.

Can symptoms improve as the pet gets older?

The structural deficit of cerebellar hypoplasia itself usually does not fully resolve, but many animals can improve function and quality of life through adaptive learning and supportive care; regular follow-up is required.

What tests will be performed at the clinic?

The vet will typically begin with a neurological physical examination. If needed, MRI is recommended to assess brain structure, alongside blood and urine tests to exclude metabolic or infectious causes.

What home care can improve quality of life?

Modify the home environment by removing height differences, providing non-slip flooring and low-step access, and monitor weight and diet. Ask your vet whether rehabilitation or supportive therapy should be arranged.

How much do the tests and treatment for this condition usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Cerebellar Hypoplasia in Dogs & Cats: Gait Instability, MRI & Home Care Guide [2025]

Cerebellar hypoplasia is a congenital condition typically detected in young animals; symptoms rarely progress, and most pets adapt well to lead a normal life

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: iCatCare, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Sudden complete inability to stand or walk with no improvement
•Rapid breathing or obviously bluish/purple gum discoloration
•Persistent lethargy or brief loss of consciousness with no response

Schedule a Clinic Visit Soon (within 24–72 hours)

•Persistent wobbling or noticeably unsteady gait
•Obvious head or mouth tremors when eating
•Nystagmus (involuntary eye movement) or unstable tracking

01What symptoms indicate something is wrong?

The cerebellum is responsible for coordination and balance. Young dogs and cats with cerebellar hypoplasia commonly show abnormal movement and eye motility, with signs typically observable from birth or early in life.

Wobbly, unsteady gait — prone to stumbling or veering off a straight line
Mild head or jaw tremors, particularly noticeable during eating
Difficulty walking in a straight line; loses balance when turning and falls easily
Low activity level and tires easily, needing more rest than age-matched animals
Nystagmus or unsteady gaze — visible eye flickering when tracking objects
Early referral to a neurology clinic is recommended for further assessment

Seek emergency care immediately if you notice the following symptoms:

⚠️ Sudden inability to stand or walk
⚠️ Difficulty breathing or purple/blue gums
⚠️ Persistent lethargy or loss of consciousness

02How can I assess abnormalities at home? Key observation points and emergency criteria

Home observations provide valuable information for your vet. Record symptom progression and any triggers using short videos and a daily log to support clinical assessment.

Note how often tremors occur and how long each episode lasts
Take short daily videos (front and side angles) to document gait and balance
Record changes in appetite, water intake, urination, and defecation with timestamps
Weigh your pet weekly and track trends in growth or weight change
Note mental alertness, changes in activity level, and any situations that seem to trigger episodes

03How will the vet make a diagnosis? Common diagnostic tests

The vet will begin with a thorough neurological physical examination, supplemented by imaging and laboratory tests where necessary to rule out other treatable causes.

Complete neurological examination to assess coordination, reflexes, and postural responses

MRI (magnetic resonance imaging) to evaluate cerebellar structure and development

Blood and biochemistry panel to assess overall health and rule out metabolic disorders

Urinalysis to help exclude infection or metabolic abnormalities

X-rays to check for skull or cervical spine abnormalities; specialist referral for advanced imaging if needed

04What treatment and aftercare are needed? Medications, dietary adjustments, and care guide

Cerebellar hypoplasia is managed primarily with supportive care and symptom management; regular follow-up is needed to monitor neurological function and adjust the care plan accordingly.

Follow the vet's plan for medication or supportive treatment to manage symptoms, with scheduled rechecks
Dietary management and weight control to support mobility and overall health
Modify the home environment — reduce height differences and sharp edges to lower fall risk
Regular follow-up to track neurological function and repeat imaging when necessary
Consider rehabilitation or physiotherapy as appropriate, and discuss specialist neurology referral if needed

05What should I prepare before the vet visit? Key information to help the vet assess quickly

Note when symptoms were first observed and how they have changed over time

Prepare short videos of tremors and gait (multiple angles and situations)

Bring a food, water, and elimination log to support overall assessment

List all current medications, supplements, and vaccination records

Bring any previous test reports or images (X-rays, ultrasound, MRI) to the appointment

When booking, ask whether a neurology appointment or preliminary imaging can be arranged

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.

Related Symptoms (You May Also Be Looking For)

Ataxia

Incoordination

Tremor

Involuntary shaking