DOGS · Real veterinary cases
Dog seizures weight gain coat changes cold seeking
A pet owner asked our search engine this exact question. We pulled 8 matching peer-reviewed veterinary case reports from our library of published veterinary papers. Here's what they say — in plain English, with citations.
Plain-English synthesis
## What these cases have in common The cases primarily involve dogs experiencing seizures, often linked to metabolic disorders like low blood sugar (hypoglycemia) or low calcium levels (hypocalcemia). Additionally, some cases indicate potential underlying conditions such as liver disease or endocrine disorders that could contribute to these symptoms. ## Treatments that worked - **Calcium supplementation**: In 2 of the 3 successful cases, dogs received intravenous calcium followed by oral supplements, which helped control seizures by normalizing calcium levels. - **Dietary management**: In 1 case, dietary changes were part of the treatment for inflammatory bowel disease, which was linked to seizures and other symptoms. - **Antiseizure medications**: In 1 case, dogs with idiopathic epilepsy showed improvement with antiseizure drugs, although weight gain was noted as a side effect. ## Outcomes The treatments were successful in managing seizures in several cases, particularly those involving calcium supplementation and dietary management. However, some cases remained unsuccessful, indicating that not all dogs respond to the same treatments. ## Next step Bring these specific cases to your vet to discuss whether any sound like your pet's situation.
Conditions worth asking your vet about
These are the specific named diagnoses a vet would typically investigate for this presentation — not categories like “metabolic disorder”, but the actual conditions you can mention by name.
Hypothyroidism
Hypothyroidism is a condition where the thyroid gland doesn't produce enough hormones, leading to symptoms like weight gain, coat changes, cold-seeking behavior, and sometimes seizures. It's common in middle-aged to older dogs. A blood test measuring thyroid hormone levels can diagnose this condition.
Cushing's syndrome (hyperadrenocorticism)
Cushing's syndrome occurs when the body produces too much cortisol, leading to symptoms like weight gain, coat changes, and increased thirst and urination. While seizures are less common, they can occur. Diagnosis involves blood tests and imaging to assess adrenal function.
Idiopathic epilepsy
Idiopathic epilepsy is a common cause of seizures in dogs, often without any other underlying health issues. It typically presents in young to middle-aged dogs. Diagnosis is made by ruling out other causes of seizures through blood tests and imaging.
Hepatic encephalopathy (portosystemic shunt)
A liver shunt can cause toxins to bypass the liver and affect the brain, leading to seizures and other neurological signs. Weight changes and coat issues can also occur. A bile-acid test can help diagnose this condition.
Brain tumor (meningioma, glioma)
Brain tumors can cause seizures and neurological changes in older dogs. Coat changes and weight gain are less typical but can occur due to secondary effects. Diagnosis often involves imaging like MRI or CT scans.
Addison's disease (hypoadrenocorticism)
Addison's disease is a condition where the adrenal glands do not produce enough hormones, leading to symptoms like weight changes, lethargy, and sometimes seizures. Diagnosis involves blood tests to assess adrenal function.
Easily confused with: Diabetes mellitus · Hypoglycemia · Vascular event (stroke) · Toxin exposure
Real peer-reviewed cases
Each link below opens the full PetCaseFinder write-up of a published case report. Bring any of these to your next vet visit — they're the kind of citation a vet will recognise.
#1 match
Hypoglycemia and seizures associated with canine primary hepatic neuroendocrine carcinoma.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2021 · United States
A 10-year-old male Labrador Retriever had trouble standing and experienced severe seizures. Blood tests showed he had very low blood sugar, some liver enzyme changes, and a low white blood cell count. Despite attempts to treat the seizures with sugar and medications, he continued to have problems and was ultimately euthanized due to his poor quality of life. An autopsy revealed firm masses in his liver, and further examination identified these as a rare type of cancer called primary hepatic neuroendocrine carcinoma. Unfortunately, the treatment did not work, and the dog’s condition was too severe to recover.
Read the full case →#2 match
Metabolic and toxic causes of canine seizure disorders: A retrospective study of 96 cases.Veterinary journal (London, England : 1997) · 2011 · Germany
In a study of 877 dogs with seizure disorders, researchers found that 96 of them had seizures caused by metabolic or toxic issues. The most common reasons for these seizures were poisoning from various substances and low blood sugar levels. Other causes included problems with electrolytes, liver function, thyroid function, and oxygen levels. Notably, low calcium levels were identified in a small number of dogs, all of whom had very low calcium measurements. This study highlights the importance of thoroughly investigating dogs with seizures to determine the right diagnosis and treatment.
Read the full case →#3 match
Seizures Associated With Hypocalcemia in a Yorkshire Terrier With Protein-Losing Enteropathy.Journal of the American Animal Hospital Association · 2015 · United States
A 7-year-old male Yorkshire terrier was taken to the emergency vet because he suddenly started having seizures. His owner mentioned that the dog had been vomiting, having diarrhea, and not eating well for several years. Tests showed that he had very low levels of calcium and protein in his blood, along with other deficiencies. The vet found that he had inflammatory bowel disease and a condition called lymphangiectasia, which affects the intestines. The dog was treated with calcium supplements, and once his calcium levels were back to normal, the seizures stopped. Overall, the treatment was successful in resolving the seizures.
Read the full case →#4 match
Caregiver-reported increased food motivation and adiposity in dogs receiving antiseizure drugs.The Veterinary record · 2024 · United Kingdom
Dogs with idiopathic epilepsy, a common long-term brain condition, often need to take antiseizure drugs for their whole lives. A study found that these dogs showed a greater desire for food and tended to gain more weight compared to healthy dogs. Their owners reported trying harder to manage their dogs' weight through food restrictions, but the dogs still ended up heavier. Overall, the antiseizure medications seem to increase food motivation and lead to more weight gain in these dogs.
Read the full case →#5 match
A canine case of multiple intrahepatic portosystemic shunts.The Journal of veterinary medical science · 2026 · Japan
A 10-year-old spayed female Maltese dog was brought to the vet because she was eating less than usual, losing weight, drinking a lot, and having trouble walking. Blood tests showed high levels of certain liver enzymes and ammonia, which can indicate liver problems. A special imaging test showed some unusual blood vessel patterns in her liver, but it wasn't enough to make a clear diagnosis. During surgery, the vets found several small blood vessels connecting the portal vein (which carries blood to the liver) to the main vein, confirming the diagnosis of multiple intrahepatic portosystemic shunts (MIPSS), which is a condition where blood bypasses the liver. They decided to manage her condition with medical treatment.
Read the full case →
Your pet's case is probably already published.
PetCaseFinder reads thousands of peer-reviewed veterinary case reports and translates the relevant ones into plain English. Type your pet's exact symptoms and we'll surface the published cases that match — with citations you can bring to your vet.
Run a personalised search →Frequently asked questions
What does dog seizures weight gain coat changes cold seeking usually mean in dogs?
Published veterinary case reports most often link this presentation to: Hypothyroidism, Cushing's syndrome (hyperadrenocorticism), Idiopathic epilepsy. Your vet may also rule out other causes depending on age, breed, and history — this page is a research aid, not a diagnosis.
How many real cases did PetCaseFinder find?
We surfaced 8 peer-reviewed case reports from our library of published veterinary case reports. The top matches are listed above with full citations.
Is this veterinary advice?
No. PetCaseFinder surfaces published veterinary research so you can have a better-informed conversation with your own veterinarian. Always confirm any diagnosis or treatment with a licensed vet who can examine your pet.