Like all living things, dog's age. When they are older they are more likely to get sick. It is important for owners to be able to recognize common symptoms of illness in dogs. This will allow owners to care for their pets in the best way possible and seek treatment when needed.
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Dry Nose
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Dry nose is a classic sign of illness in older dogs. It usually means a slowing of liquid production because of sickness. You can tell if your dog's nose is drier then usual simply by touching it. If your dog's behavior is changing and it has a dry nose, it is best to take it to a veterinarian. She will be able to determine if the dog is really sick or if the liquid production is slowing just because of the dogs age. Dry nose may also be a result of change in climate or environment. If this is the case the symptom should not last long.
Significant Weight Change
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A little weight change is normal, but when a dog gains or loses weight in large amounts, it may be a sign of a more serious illness. Have the dog checked by a vet immediately when you notice such weight change. Older dogs are more likely to lose large amounts of weight than gain it.
Loss of Appetite
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It is well known that dogs love to eat. A loss of appetite usually means a dog is sick. A variety of factors could cause this, including stomach ailments, problems with teeth or digestion or other ills. Try giving your dog his favorite food to see if that changes his appetite. If it does not tempt him, take him to a vet to get to the root of the problem.
Behavioral Changes
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If your dog suddenly behaves differently, she may be ill. If she doesn't sleep or sleeps more than usual, seems moody, is easily irritated, lethargic, extra energetic or anything out of the ordinary, consult a veterinarian. Remember that as a dog ages, they are likely to act a little different, but if these changes are sudden and noticeable they may be sick.
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