Cats are masters of disguise—not just in their playful antics but also in hiding signs of illness. It’s no wonder they’ve earned a reputation for being stoic and independent. However, this can make it challenging for even the most attentive cat parents to spot when something is wrong.
In honor of National Cat Health Month, we’re shining a light on the importance of annual check-ups and routine bloodwork for your feline friend. These simple steps can help detect underlying health issues early, ensuring your cat stays happy and healthy for years to come.

Why Cats Hide Illness
“In the wild, showing weakness can make an animal a target for predators,” says Dr. Womersley, DVM. “While your indoor cat doesn’t face these same threats, they still instinctively mask signs of pain or discomfort. This means that by the time symptoms appear, the condition may already be advanced.”
This natural survival instinct makes it even more critical for cat owners to be proactive about their pet’s health. Regular vet visits and routine bloodwork can uncover hidden issues before they escalate.
The Big Three: Common Hidden Health Conditions
Routine check-ups and diagnostic tests help detect common feline illnesses early. Here are three of the most frequent conditions that often go unnoticed:
1. Diabetes Mellitus
What it is: Diabetes occurs when the body cannot properly regulate blood sugar levels due to insufficient insulin production.
Signs and symptoms:
Increased thirst and urination
Unexplained weight loss
Lethargy
Why early detection matters: Left untreated, diabetes can lead to severe complications like nerve damage and organ failure. Routine bloodwork can catch early glucose imbalances, allowing for timely treatment with diet, medication, and lifestyle adjustments.
2. Chronic Kidney Disease (CKD)
What it is: A progressive decline in kidney function that affects the body’s ability to filter toxins and maintain proper hydration.
Signs and symptoms:
Increased drinking and urination
Weight loss and poor appetite
Vomiting or bad breath
Why early detection matters: Dr. Womersley emphasizes the importance of routine screenings:
“We have seen several new patients with advanced kidney disease in the last year. All of these cats had not had routine veterinary care in several years. If we had been able to run bloodwork on them a couple years ago, we could have added quality time to their lives.”
Since kidney disease often progresses silently, early diagnosis allows for interventions such as dietary management and medication, which can slow its progression and improve a cat’s quality of life.
3. Hyperthyroidism
What it is: An overproduction of thyroid hormones, often caused by a benign tumor in the thyroid gland.
Signs and symptoms:
Weight loss despite an increased appetite
Restlessness or hyperactivity
Vomiting or diarrhea
Why early detection matters: Hyperthyroidism can strain the heart and other organs if untreated. Blood tests can identify elevated thyroid hormone levels early, allowing for effective treatment with medication, diet, or other therapies.
The Role of Routine Exams and Bloodwork
Annual physical exams provide a chance to check for external signs of illness, such as weight changes, coat quality, or dental health. Bloodwork goes a step further, uncovering subtle changes in organ function or hormone levels that aren’t visible on the surface.
Early detection means:
More effective treatments
Better quality of life for your cat
Reduced long-term healthcare costs
Caring for a cat means looking beyond what they let you see. Regular vet visits and proactive screenings are essential tools in uncovering their hidden health secrets. This February, celebrate National Cat Health Month by scheduling an annual exam and bloodwork for your feline friend.
Your cat may be a mystery, but with a little care and regular check-ups, we can help them live a long, happy, and healthy life by your side!
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