Should I worry about weight loss in a dog?

Answer by  worker3993 (14)

Dogs lose weight for a variety of reasons, and if added exercise isn't in the picture it is a good idea to schedule an appointment with a vet. Some common causes of weight loss are parasites, changing outside temperature, or underlying serious health problems.

Answer by  worker8766 (60)

Old age is one factor, but if the dog eats and eats and still loses weight, worms may be an issue. Check to see if round or tapeworms are present.

Answer by  worker6632 (51)

If your dog is eating the same amount of food as usual and has not increased his level of activity, then there may be reason for concern.