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Cerebellar Hypoplasia in Dogs: Managing This Brain Disease

Home » Blog » Cerebellar Hypoplasia in Dogs: Managing This Brain Disease
March 23, 2021 by Sharon Seltzer
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Table of Contents[Hide][Show]
  • Why some dogs develop cerebellar hypoplasia+−
    • Here are the dog breeds prone to inheriting CH
  • Symptoms of cerebellar hypoplasia in dogs
  • One kitten's journey with CH
  • How veterinarians make a diagnosis
  • Deadly diseases cerebellar hypoplasia mimics
  • Treatment for cerebellar hypoplasia in dogs+−
    • Read about other neurologic brain disorders in dogs
Golden retriever puppy running

Cerebellar Hypoplasia (CH) in dogs is a neurologic condition that puppies can develop during gestation. It’s a relatively uncommon disorder, but an important one to know because the symptoms mimic other puppy diseases.

CH happens when a part of the brain, called the cerebellum, doesn’t fully develop. It causes dogs to have mobility problems. Puppies with the disorder walk with exaggerated, uncoordinated steps that cause stumbles and falls. Some pups have head tremors and problems with eye coordination, as well.

The good news about CH is the condition doesn’t get worse over time. Puppies don’t even realize they have a disability and most lead long and happy lives.

Why some dogs develop cerebellar hypoplasia

CH is an unusual disease because dogs can contract it in two entirely different ways. It considered to be an inherited disorder by a small group of dog breeds. Puppies and kittens can also develop CH through environmental substances that attack the mother dog or cat while they’re pregnant.

These substances can be: toxins, poisons, poor nutrition, an infection and even vaccinations the mother received.

In each case, the cerebellum is damaged and never fully matures.

“The cerebellum is responsible for the control and co-ordination of voluntary movement and posture of your dog.”  –

Dog Listener

Here are the dog breeds prone to inheriting CH

Airedales

Boston terriers

Bull terriers

Chow chows

Irish setters

Symptoms of cerebellar hypoplasia in dogs

Puppies born with CH don’t show symptoms until they’re about 6 weeks old. Kittens, on the other hand, show signs soon after they’re born.

These symptoms include:

Wobbly and unsteady walking

Balance problems

Head tremors

Swaying of the body

Standing with their legs wide apart

Dancing eyes – Pets have trouble focusing on objects in front of them

One kitten’s journey with CH

Kitten born with cerebellar hypoplasia

A while back I had the pleasure of interviewing Emily Hall. She’s runs a website for felines with special needs called Kitty Cat Chronicles.

When I talked with her, it had been a year since her youngest of five cats, Sophie, had joined the family. Sophie was born with cerebral hypoplasia.

Here’s how Emily described her kitten’s life:

“Sophie is considered to have a mild-moderate form of CH, which means she can get around pretty well and can eat and use the litter box just fine; she just stumbles sometimes, walks a little funny, and has trouble jumping. When she does jump, she can get a surprising amount of air, but she doesn’t have a whole lot of control over where she lands.

All of those issues aside, she is one of the most happy-go-lucky animals I’ve ever met.

When we first adopted her, she fell over in the litter box a lot. We had to give her baths almost daily, sometimes multiple times a day, because she would fall over in the box and make big messes. If we knew she was heading to the litter box, we would follow her and hold her up while she went to the bathroom to keep her from falling over. If she wanted up on the couch, she had to climb, or we would pick her up. When she wanted up on our bed, we would pick her up and put her there.

Cat with cerebellar hypoplasia
Sophie was born with Cerebellar Hypoplasia.

Today, she can go in the litter box on her own every time – she has figured out how to lean up against the wall to hold herself up. Sophie can jump up onto the couch with (almost) no trouble. She can jump up onto the bed and l climb the stairs!

I’m not saying she can do any of these things perfectly or gracefully. What I’m saying is she has figured out how to do so many things that she couldn’t do before, things that most kitties can do just fine.

Sophie has taught my husband and me so much about life. She has trouble with a lot of things that “normal” cats have no trouble with at all. She falls, stumbles, trips over her own feet, and can’t hold her head still. But despite all of that, our kitten loves every second of life and never lets her disability get in the way. Sophie always seems to have a smile on her face, even when she wipes out while running down the hallway. When she falls, she ALWAYS gets right back up like nothing happened. My kitten doesn’t notice that she’s “different.”

Sophie has never once let her disability stop her from doing something she wanted to do. She just goes for it, whatever it is. And eventually, she accomplishes her goal. I admire her, and I think we could all learn something from her determination and bravery. Not to mention, she is one of the loveliest and snuggliest kitties around.”

How veterinarians make a diagnosis

Boston terrier puppy running
Depositphotos

Your vet will likely do a complete physical exam and a neurological assessment. They’ll take into consideration how old your puppy is, the symptoms they show and the breed. An MRI (magnetic resonance imaging) might also be ordered so your vet can rule out other diseases.

As with most neurologic conditions, CH is diagnosed by eliminating disorders that have similar symptoms. This is extremely important because cerebellar hypoplasia resembles other more life-threatening diseases.

The biggest difference to keep in mind is that CH doesn’t get worse with age. The symptoms you see in your puppy today will be the same ones they’ll have in the future. If your puppy is getting worse, it’s important to report it to your vet.

Deadly diseases cerebellar hypoplasia mimics

Cerebellar Abiotrophy – This is a progressive and terminal brain illness with symptoms similar to CH. Dogs lose balance and coordination and have poor control over their muscles. Cerebellar abiotrophy develops in the cerebellum, like CH, but the disease continues to get worse as cells in the brain die. Ultimately dogs lose their ability to walk, swallow and bark.

Hepatic Encephalopathy – The serious nature of this condition is due to a build-up of toxins in the brain because the liver stops working normally. The early signs look like those of CH. Dogs have head tremors, stagger when they walk and have a fixed gaze. It’s important to rule out this disorder because it can be life-threatening.

Distemper – This viral disease can also look like CH. Dogs show signs of muscle weakness and are uncoordinated when they walk. This is due to an inflammation in the brain and spinal cord. The difference between the two conditions is that patients with distemper run a fever, are lethargic and have a discharge of mucus in their nose and eyes.

Treatment for cerebellar hypoplasia in dogs

Airedale puppies are prone to Cerebellar Hypoplasia
Airedales are prone to CH

There isn’t a treatment for Cerebellar hypoplasia. With a few lifestyle adjustments, most dogs and cats have happy, quality lives.

The best way to manage their care is to make your home safe to accommodate their physical limitations. That will look different in each household. Some pets will need help getting on and off furniture, going to the bathroom and at mealtime. Other dogs might need assistance going up and down stairs or walking across slick floors.

The problems of their daily lives are fixable and manageable. Ramps can be added for easy access to furniture and beds, handfeeding could be introduced for meals and holding your pet during bathroom breaks could reduce messes.

If you’re thinking about adopting a puppy or kitten with CH, my best advice is to enjoy them and love them for a long time.

Read about other neurologic brain disorders in dogs

Degenerative Myelopathy in Dogs: What You Should Know

Beagle Pain Syndrome: A Rare Disease That Can Cause Paralysis

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About Sharon Seltzer

I’m a blogger, professional writer and co-founder of the Heaven Can Wait Animal Society. I’m also a pet mom who’s raised 9 dogs, 6 cats and lots of other critters. When my dog Sophie became paralyzed in 2008, it was a lonely experience. It took months to find all of the resources to help her live a quality life. My mission is to share those services with other pet owners and to teach people how to care for a disabled dog.

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Dog Wheelchair LIFE teaches pet families how to care for their paralyzed dog. This is not a medical site and I am not a veterinarian. I am a blogger and pet mom who was the caretaker for Sophie, a paraplegic dog. I’m also a co-founder of the Heaven Can Wait Animal Society in Las Vegas, NV and an animal writer who has contributed to websites and magazines.

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