Cushing's disease in dogs (hyperadrenocorticism) is caused by excessive cortisol, most commonly from a benign tumor on the pituitary gland signaling the adrenal glands. Other causes include tumors on the adrenal glands themselves (benign or malignant) or prolonged use of steroid medications (iatrogenic Cushing's). These conditions trigger the body's adrenal glands to overproduce the stress hormone cortisol, leading to various health problems.

What triggers Cushing's disease in dogs?

In dogs, Cushing's disease occurs naturally and is either pituitary-dependent or adrenal-dependent. About 80% to 85% of Cushing's is pituitary-dependent, meaning it's triggered by a tumor on the pituitary, a pea-sized gland at the base of the brain.

Does Cushing's cause diarrhea?

Cushing's syndrome does not produce the same symptoms for all dogs, however there are common abnormalities. Vomiting and diarrhea are rarely seen. Many of the Cushing's syndrome dogs urinate more frequently and for long time period due to excess urine volume.

Can you reverse cushings in dogs?

Most veterinarians treat both adrenal- and pituitary-dependent Cushing's disease with medication. The only way to "cure" Cushing's disease is to remove the adrenal tumor if the disease is adrenal-dependent and the tumor hasn't spread, says Stohlman.

Are dogs with Cushing's in pain?

Yes, Cushing's disease in dogs can indirectly cause pain through muscle weakness leading to joint issues, mobility problems, and recurrent infections, while rare neurological complications from large tumors can also be painful, but the primary symptoms are excessive thirst/urination, pot-belly, and skin/coat problems, with pain often managed through supportive care and medications like NSAIDs or gabapentin alongside Cushing's treatment.
 

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What are the final signs of Cushing's disease in dogs?

Final Stages of Cushing's in Dogs

Warning signs include uncontrollable urination and excessive drinking. Acute cases may include additional physical symptoms such as vomiting or diarrhea, whereas chronic stages typically involve changes in behavior or appearance but no obvious physical abnormalities.

Is walking good for a dog with Cushing's disease?

Cushing's can lead to muscle weakness and reduced energy, but regular exercise is crucial for maintaining weight and mental stimulation. Adapt your dog's activity level based on their condition: Low-impact exercise: Gentle activities, such as short walks, swimming, or controlled play sessions, are beneficial.

What is a natural remedy for dog Cushing's?

Lignans are natural plant compounds found in flaxseed hulls and certain other plants. They're beneficial for dogs with Cushing's disease or Atypical Cushing's because they help block the overproduction of steroid hormones, including the “sex steroids” that can cause symptoms in atypical cases.

Do dogs with Cushing's pee a lot?

Increased thirst and urination: This is one of the most common signs of Cushing's and occurs due to the increased production of cortisol, which affects the body's water balance. Dogs with Cushing's disease may drink and urinate more frequently and produce larger volumes of urine.

How often should my dog see the vet with Cushing's?

Managing Cushing's Syndrome

Your dog will need to be carefully monitored and return for follow-up appointments with us at Shires Vets regularly. Once your veterinary surgeon is happy that your dog is stable, you will normally need to visit every three months to make sure nothing is affecting your dog's condition.

Can supplements help with Cushing's in dogs?

For Cushing's disease in dogs, popular supplements focus on reducing cortisol levels using lignans (from spruce or flax) and melatonin, which block ACTH and hormone production, often combined with phosphatidylserine to lower cortisol. Other helpful supplements include milk thistle for liver support, antioxidants (Vitamin E, C, Selenium) to protect cells, probiotics, and herbal blends like ashwagandha, but always consult a vet before starting any supplement to ensure it complements conventional treatment. 

Why are so many dogs being diagnosed with Cushing's disease?

We do not know why but this has been the case for many years, and it is highly unlikely that stress or over-vaccination plays a role in the canine disease. Most of these dogs (and people) with Cushing's disease have a small pituitary tumor.

What are the signs of adrenal gland problems in dogs?

Dogs with atypical Addison disease can have low blood levels of cortisol but normal levels of sodium, potassium, and chloride. Signs of Addison disease include repeated episodes of vomiting and diarrhea, loss of appetite, dehydration, and a gradual loss of body condition. Weight loss is often severe.

Why is Cushing's disease so common in dogs?

Cushing syndrome happens when the body has too much of the hormone cortisol for a long time. This can result from the body making too much cortisol, or from taking medicines called glucocorticoids, which affect the body the same way as cortisol.

Are dogs with Cushing's always hungry?

Yes, an increased appetite (polyphagia) is a hallmark symptom of Cushing's disease in dogs, often appearing alongside excessive thirst (polydipsia) and urination (polyuria), as high cortisol levels directly stimulate hunger and affect metabolism. While not every dog will show extreme hunger, it's a very common sign, along with a pot-bellied appearance, thinning hair, skin issues, and lethargy, that warrants a vet visit. 

Can stress cause Cushing's syndrome?

Cortisol is the hormone the body produces to help you in times of stress. It is good to have cortisol at normal levels, but when those levels get too high it causes health problems. Although cortisol is related to stress, there is no evidence that Cushing's syndrome is directly or indirectly caused by stress.

Should you limit water for a dog with Cushing's?

You must continually monitor your dog's food and water intake. Both should return to a normal level. Water intake should be less than 1 ounce per pound (66 ml per kilogram) of body weight per day, but do not limit water if your dog needs to drink more.

What are the three stages of Cushing's disease in dogs?

Stages of Cushing's Disease in Dogs

• Stage 1: You may notice that your dog is drinking more water and urinating more frequently.
• Stage 2: Your dog may be losing some of their fur and noticeably gaining weight.
• Stage 3: The muscles on your dog may be wasting away and they may have a potbellied appearance.

Why do dogs get Cushing's disease?

Cushing's disease (hyperadrenocorticism) in dogs is caused by prolonged exposure to excess cortisol, usually from a benign pituitary tumor (most common), a tumor on an adrenal gland, or prolonged use of steroid medications (iatrogenic Cushing's). The pituitary tumor overstimulates the adrenals, while an adrenal tumor produces cortisol directly; both lead to the body making too much cortisol, causing symptoms like increased thirst, urination, skin issues, and a pot-bellied appearance.
 

What not to give a dog with Cushing's disease?

What foods should be avoided for dogs with Cushing's disease? Avoid high-carb foods, processed and fatty foods, and salty treats such as jerky, chips, or deli meats. These can worsen symptoms and strain your dog's kidneys and heart.

Will my dog be in pain with Cushing's disease?

Yes, Cushing's disease in dogs can indirectly cause pain through muscle weakness leading to joint issues, mobility problems, and recurrent infections, while rare neurological complications from large tumors can also be painful, but the primary symptoms are excessive thirst/urination, pot-belly, and skin/coat problems, with pain often managed through supportive care and medications like NSAIDs or gabapentin alongside Cushing's treatment.
 

Does Cushing's disease affect a dog's back legs?

This disease may not only affect hormones but also impact a dog's overall strength and mobility, especially in the back legs. Cushing's can cause muscle wasting, fatigue, and reduced coordination. Recognizing these early signs can help your dog get timely care.

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