Blog Cushing’s Disease in Dogs
Cushing’s disease is a hormonal condition that affects how a dog’s body produces and regulates cortisol — a hormone that plays an important role in energy, stress response, and metabolism.
When cortisol levels become too high for an extended period of time, it can begin to impact a dog’s overall health, including their coat, appetite, behavior, and energy levels.
While it can sound overwhelming at first, understanding the condition early is one of the best ways to support your dog’s long-term wellbeing.
What Causes Cushing’s Disease?
Cushing’s disease (also known as hyperadrenocorticism) usually develops when the body produces too much cortisol. This can happen for a few different reasons:
Pituitary-Dependent Cushing’s
This is the most common form. It occurs when a small tumor develops on the pituitary gland in the brain, causing it to signal the body to produce excess cortisol.
Most dogs diagnosed with Cushing’s disease fall into this category.
Adrenal-Dependent Cushing’s
In some cases, the issue begins in the adrenal glands, which sit near the kidneys. A tumor in one of these glands can lead to overproduction of cortisol.
Medication-Related Cushing’s
Less commonly, Cushing’s disease can develop as a side effect of long-term use of corticosteroid medications.
Why Cortisol Balance Matters
Cortisol isn’t a “bad” hormone — in fact, it’s essential for normal body function. It helps regulate:
- Metabolism
- Blood sugar levels
- Stress response
- Immune system activity
The issue arises when levels stay consistently too high, disrupting these natural processes over time.
How Cushing’s Disease Affects Dogs
Because cortisol impacts so many systems in the body, the signs can vary from dog to dog and may develop gradually.
Some of the most common changes pet parents notice include shifts in coat quality, increased thirst, changes in appetite, or differences in energy levels.
These signs can sometimes be subtle at first, which is why early awareness is so important.
Diagnosing Cushing’s Disease
There is no single test that confirms Cushing’s disease right away. Instead, veterinarians typically use a combination of:
- Blood tests
- Urine analysis
- Hormone testing
- Imaging (such as X-rays or ultrasound, when needed)
Because several conditions can mimic similar symptoms, diagnosis often involves ruling out other possible causes as well.
Treatment Options
Treatment depends on the underlying cause of the condition.
- Pituitary-dependent Cushing’s is typically managed with long-term medication that helps regulate cortisol levels.
- Adrenal-dependent Cushing’s may, in some cases, require surgical treatment to remove the affected gland.
In both cases, ongoing veterinary monitoring is an important part of care.
A Calm Reminder for Pet Parents
Cushing’s disease is a serious condition, but it is also one that can often be managed with the right diagnosis and treatment plan. If you ever notice changes in your dog’s coat, behavior, or daily habits that feel out of the ordinary, checking in with your veterinarian is always the best next step. At Very Important Paws, we believe informed pet parents make confident decisions — and small observations often lead to the biggest difference in care.