If you just heard the words "Cushing's disease" at your vet's office, you're probably equal parts worried and confused. It's a lot to take in— and the internet doesn't always make it easier. So let's slow down and start from the beginning.
What Is Cushing's, Really?
Here's the simplest way to think about it: your dog's body is producing too much cortisol.
Cortisol is often called the "stress hormone," but it does a lot more than that — it helps regulate energy, manage inflammation, and keep dozens of body systems in balance. In a healthy dog, cortisol levels rise and fall naturally throughout the day. In a dog with Cushing's, the system that controls cortisol gets stuck in the "on" position. The result is cortisol running too high, for too long — and that causes problems throughout the body.
What Causes It?
In most dogs (roughly 85%), Cushing's is caused by a small, usually growth on the pituitary gland — a pea-sized structure at the base of the brain. This growth sends signals that tell the adrenal glands to keep producing cortisol, even when they shouldn't. In the remaining cases, the problem starts at the adrenal glands themselves, where a tumor produces cortisol on its own.
Your vet may refer to these as PDH (pituitary-dependent) and ADH (adrenal-dependent). If you want a deeper technical explanation of how each type works, cushingsindogs.com has a thorough breakdown (https://cushingsindogs.com).
The Symptoms You Probably Already Noticed
Cushing's develops slowly, which is why it often goes undiagnosed for a while. By the time most owners get a diagnosis, they've been watching these signs for months:
- Drinking and urinating much more than usual
- A rounded, pot-bellied abdomen
- Hair loss on the body (but usually not the face or legs)
- Increased panting, even when not hot
- Lethargy and muscle weakness
- Skin changes — thinning, darkening, or unusual bumps
If several of those sound familiar, that's because Cushing's causes all of them — not as separate problems, but as one condition affecting many systems at once.
What Are Your Options?
There's no single right answer here, and your vet's recommendation will depend on your dog's specific situation. But broadly, most owners land in one of three camps:
1. Pharmaceutical treatment
Medications like trilostane (Vetoryl) or mitotane (Lysodren) work by reducing cortisol production. They're effective but require regular monitoring with blood tests, and they carry some side effects worth discussing with your vet.
2. Natural supportive care
Some owners use a combination of lignans and melatonin as a natural approach to supporting cortisol regulation. This is the approach we focus on at Lignans.com. It's gentler, doesn't require the same level of monitoring, and many dogs tolerate it well. It's worth an honest conversation with your vet.
3. Watchful waiting
For older dogs with mild symptoms, some vets recommend monitoring without immediate treatment — especially if the risks of medication outweigh the benefits at that life stage. Many owners end up combining approaches — working with their vet on conventional monitoring while also incorporating natural support. There's no shame in exploring all your options.
Questions Worth Asking Your Vet
Before your next appointment, it helps to go in prepared. Here are a few questions that will get you useful answers:
- What type of Cushing's does my dog have — pituitary or adrenal?
- How advanced does this appear to be right now?
- What monitoring would you recommend regardless of which treatment path we choose?
- Are there natural options you'd be comfortable with me exploring alongside treatment?
- What symptoms should prompt me to call immediately?
The Most Important Thing to Know Right Now
Cushing's is manageable. It's not a death sentence, and many dogs live comfortably for years after diagnosis with the right support in place. The fact that you're here, reading and learning, means you're already doing the most important thing — taking it seriously and looking for answers.
If you want to understand the condition at a deeper level, https://cushingsindogs.com covers the clinical science in detail. And when you're ready to learn specifically about lignans and melatonin as a natural option, explore the rest of our site — we've tried to make it as straightforward as possible.
You've got this. And your dog is lucky to have someone looking out for them this carefully.
---Always consult your veterinarian before starting or changing your dog's treatment plan.