{ "@context": "https://schema.org", "@type": "BlogPosting", "headline": "The most common diseases of the senior cat — kidney failure, thyroid gland and pain", "description": "Is your old cat losing weight or drinking a lot? Senior cats often suffer from hidden diseases. Read the veterinarian's list of the top 3 most common ailments.", "datePublished": "Jan 24, 2026", }

The most common diseases of the senior cat — kidney failure, thyroid gland and pain

📞 Senior examinations of cats in Vantaa: 010 739 9130

Cats are living longer than ever these days -- 15 or even 20 years of age is not uncommon. As the cat ages (more than 10-12 years), the risk of certain chronic diseases increases significantly.

Since the cat is a master at masking the symptoms, the owner must be a secret police officer. Here are the “big three” that plague old cats.

1. Renal failure (CKD)

By far the most common cause of death for old cats. The kidneys lose their ability to filter slag substances from the blood.

  • Symptoms: Increased drinking and urination, weight loss, poor appetite, vomiting.
  • Treatment: Can not be cured, but the progression is slowed down by diet and medication. Early detection by blood tests is vital.

2. Hyperthyroidism (Hyperthyroidism)

The thyroid gland goes into overdrive and speeds up the metabolism.

  • Symptoms: The cat loses weight drastically despite eating enormously (“lean glutton”), is restless, screams at night, and the fur becomes tangled.
  • Treatment: Medication, iodine diet or radioiodine therapy. When treated, the prognosis is excellent.

3. Osteoarthritis and pain

More than 90% of cats over the age of 12 have osteoarthritis. However, it is not recognized because the cat is not lucky.

  • Symptoms: The cat no longer jumps high (or hesitates), sleeps more, does not wash its fur from its back, or is grumpy when handled.
  • Treatment: Pain relief with oral medications, injection treatments, or dietary supplements.

How do you keep a senior healthy?

Recommended for all cats over 10 years Annual Seniors Review, which includes extensive blood tests and blood pressure measurement.

Do not put the symptoms on the “spike of old age”. When cared for, a senior cat can live a quality life for years to come.

📍 Veterinary Hospital Sacrum — Porttisuontie 13, Vantaa

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