Cats can easily reach 16 or 17 years of age and with good feeding and medical care, old-age can be a very pleasant and contented time for them.
Feeding - Dry foods (biscuit or kibble) can still be fed, although wet foods (canned or sachets) are particularly useful for elderly cats who have lost some or all of their teeth.There are many proprietory brands that provide 'senior diet' foods specially formulated to cater for the nutritional requirements of elderly cats. Remember though, to keep a close watch on how much is being eaten as one of the first signs of illness will be a diminished appetite.
In cases where specific illness has been diagnosed (such as kidney disease, diabetes etc), your veterinary surgeon will be able to advise you and offer specialist 'prescription' diets that are suitable for your pet.
Warmth - It is very important to older cats to have somewhere to rest that is warm and comfortable - in the winter months, many will sleep for almost 24 hours! My own cats' favourite is a radiator bed. In summer, cats will often find the sunniest spot in the garden to bask, so they should be checked regularly as they can overheat. Always make sure they have plenty of fresh water available.
Medical Care - It is a good idea for elderly cats to visit the veterinary surgeon regularly; many vets offer 6 monthly 'senior pet' clinics where routine check ups are performed and potential problems discussed. Early diagnosis is best as even minor illness can quickly become complicated.
Troubles of Old Age
Teeth - Teeth can be a common cause of discomfort and loss of appetite and
elderly cats often require dental extractions or descaling. Although it is worrying to submit your senior cat to a general anaesthetic, you will usually find that your cat's well-being will improve dramatically once the cause of the discomfort has been removed. Your pet will find it much easier to eat with hard healthy gums than with bad teeth.
Nails - As cats get older, their joints often become stiffer. This means that claws no longer wear properly and the cat can have difficulty in retracting them. Regularly trimming off or filing the overgrown tip of the nails will help. Some examples of suitable clippers and files can be found here.
Constipation - Sometimes elderly cats can suffer severly from constipation, usually caused by deterioration of their muscle-tone, although it can also be due to lack of exercise or swallowing large quantities of hair when they are moulting or shedding (hairballs).
There are several proprietory remedies available, milk is also a natural laxative, or your vet may provide some stronger medicine to alieviate the problem. Never ignore constipation in your pet, as it can lead to more serioius complications if left untreated.
Incontinence - Unfortunately, elderly pets can lose control of their bladder and/or bowels and this can make both yours and their lives very difficult. Please never blame the animals as this is something that they cannot help. Discuss it with your vet at check-up time - there may be some medical help available. Your vet will also be able to tell you if you can expect any improvement in your cat's condition.
All-in-all, cats are much like humans as they get older. They slow down a bit, like some extra comfort and attention, are often a little fussy with food and possibly start to show some signs of elderly illnesses. However, in spite of this they will suddenly surprise you by leaping up and chasing a ball of paper or trying to catch a flying insect. Enjoy them!