Answer:
I think one of the most challenging aspect of working with dogs and cats suffering from a disease is relationship. These animals are pets to someone, they are loved. The hardest decision made by vets are putting down a suffering animal from a disease. Vets will do as much as they can to save an animal but when it is in pain and almost untreatable, they will most likely try and persuade the family of its current well being and that a better option will be to put them down. This can be heartbreaking for vets because they want to save your pet from its suffering, but they will have to make a hard decision regarding your animal's health.
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