Common Age-Related Symptoms To Watch For in Senior Cats

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Age related symptoms to watch for in cats

The risk of age-related disorders increases as a cat moves into his or her senior years and often catch pet owners unaware. Cats are exceptional at hiding signs of pain and illness, and often just the smallest change can be an indicator that the cat has an underlying problem.

In this article, we look at common symptoms which can develop in senior cats and the possible causes.

At a glance:

  • Increased appetite
  • Decreased appetite
  • Urinating more
  • Drinking more
  • Lumps and bumps
  • Weight loss
  • Weight gain
  • Going to the toilet outside the litter tray
  • Bad breath
  • Vomiting
  • Increased vocalisation
  • Stiffness, and reluctance to move

Increased appetite: 

An increased appetite can be accompanied by weight gain or weight loss. Common causes of increased appetite in senior cats include:

  • Hyperthyroidism – A benign hormone-secreting tumour of the thyroid gland
  • Diabetes – Cells build up a resistance to insulin, a hormone necessary for glucose to enter the cells. As a result, glucose levels build up in the bloodstream.
  • Acromegaly – A rare disease caused by an overproduction of the growth hormone (GH). It is caused by a slow growing, functional growth hormone secreting tumour (adenoma) of the pituitary gland which is located at the base of the brain.
  • Cushing’s syndrome – An endocrine disorder caused by high levels of cortisol in the body either due to a tumour or medical administration. It is as rare disease in cats, middle-aged and older cats are most often affected.

Decreased appetite: 

It’s easy to dismiss a decrease in appetite as the cat becoming fussy. Loss of appetite can affect cats of any age and is typically the result of the cat feeling unwell. Nausea and pain and  common causes of loss of appetite in senior cats, causes include:

  • Chronic kidney disease – A gradual loss of kidney function over a period of months of years which causes a build-up of toxins in the blood. It a common disease in middle-aged to senior cats.
  • Cancer – Also referred to as malignant neoplasms or malignant tumours, cancer is the uncontrolled division of cells that normally should be restrictive in their growth.
  • Addison’s disease – An endocrine disorder caused by a deficiency of corticosteroids which are produced by the adrenal glands. The cause is the destruction of the adrenal cortices, which are responsible for producing a number of hormones.

Urinating more: 

The two most common causes of an increase in drinking and urination are diabetes and kidney disease. Between 70 – 85% of kidney function can be lost before cats display clinical signs of kidney disease.

  • Chronic kidney disease
  • Diabetes
  • Hyperthyroidism
  • Cushing’s syndrome

Drinking more:

An increase urination and thirst go hand in hand (the medical term is polyuria/polydipsia), as kidneys become less efficient, excess fluids are lost which triggers excessive thirst in the cat. Common causes of increased thirst include:

  • Chronic kidney disease
  • Diabetes
  • Hyperthyroidism
  • Cushing’s syndrome

Weight loss: 

Weight loss can sneak up on a cat without the owner noticing because the fur can mask signs of weight loss.

The most common causes of unexpected weight loss in middle-aged to senior cats are:

  • Cancer
  • Hyperthyroidism
  • Diabetes
  • Chronic kidney disease
  • Dental disease

Lumps and bumps:

Lumps and bumps are not the exclusive domain of senior cats but the development of benign and malignant tumours does increase with age.   Causes of lumps and bumps on senior cats include:

Bad breath:

Bad breath can be a sign that there is a dental problem, or a systemic disorder. The most common causes include:

  • Gum disease – An inflammatory infection which leads to the destruction of the supporting gums and bones.
  • Uncontrolled diabetes – Ketoacidosis is a serious complication of diabetes in which ketones and blood sugar levels build up in the body due to insufficient levels of insulin which is required to move glucose into the cells for energy. The body uses fat as an alternate energy source which produces ketones.  The breath takes on a fruity smell, due to the presence of ketones in the blood.

Dental disorders can be painful and cause reluctance to eat. Other symptoms of dental disorders include plaque on the teeth, discolouration, redness along the gums.

Vomiting:

Sometimes cats will vomit for no apparent reason, however vomiting is almost always a sign of an underlying medical condition. In senior cats, vomiting can be due to the following:

  • Hyperthyroidism
  • Chronic kidney disease
  • Diabetes
  • Cancer

Stiffness, lameness and slowing down: 

People often put stiffness, slowing down, reluctance to jump, or taking smaller jumps, going to the toilet outside the litter tray and less graceful movements down to normal ageing however arthritis is often the culprit. Arthritis is a a painful condition in which the shock absorbing cartilage which cushions the joints wears down and is eventually lost.

Studies have revealed the following:

  • 20% of cats over 1 have some signs of arthritis
  • 60% of cats over 6 have arthritis
  • 90% of cats over 12 have arthritis

This means a lot of cats are living in pain because they have undiagnosed arthritis.

Acromegaly can also cause painful joints in affected cats, however this disease is a much less common cause of stiffness and pain.

Going to the toilet outside the litter tray: 

Urinating or defecating in other parts of the house or even close to the litter tray can be a sign of an underlying medical problem and is not because the cat is lazy, dirty or spiteful. Causes include:

  • Arthritis – It can be difficult for arthritic cats to climb in and out of the litter tray.
  • Dementia – Just like humans, cats can begin to lose their mental faculties as they move into their senior years. This can come as quite a shock to pet owners, as dementia is not something most people associate with cats.
  • Urolithiasis – Uroliths are rock-like stones which develop in the urinary tract of affected cats.

Crying more:

This can occur throughout the day, or on an evening when everyone is sleeping. Common causes include:

  • Dementia
  • Loss of vision – This can develop suddenly or be slow and progressive.
  • Urinary obstruction – One study found the median age of urinary obstruction was six, which is middle-aged, but this is a condition that is life-threatening to any affected cats. Most cases occur in male cats due to their narrower urethra. Common symptoms include crying, excessive genital licking, frequent trips to the litter tray.

If you notice any changes seek veterinary advice. Many of these conditions can be successfully treated if caught early, others can be managed to slow down their progression.

Frequently asked questions:

What is considered old age (senior) for a cat?

A cat reaches middle age from 6 years of age, and moves into his or her senior years around 10-11 years of age. Beyond 14 is considered geriatric.

How often should a senior cat see a veterinarian?

We recommend that ALL cats over the age of seven have bi-annual health checks to pick up any changes. In-between veterinary visits pet owners should be alert for subtle changes that may indicate the onset of a disease.

What tests should I ask for?

Baseline tests which include complete blood count, urinalysis and biochemical profile which will provide the veterinarian valuable information about the overall health of the cat. Additional tests may be necessary if baseline tests reveal any abnormalities.

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