Dysthanasia (animal)

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A geriatric mastiff with multiple tumors is being prepared for palliative surgery.

Animal dysthanasia (from the Greek, meaning “difficult death”: dys (bad; difficult) + thanatos (death)) refers to the practice of prolonging the life of animals that are seriously or even terminally ill and that are potentially experiencing suffering. Animal dysthanasia is a recent concept, emerging from changes in the social perception of animals and from advances in veterinary care.


Animal dysthanasia is particularly relevant in the context of small animal practice. For centuries, domestic animals in Western societies used to be mainly farm animals. With the industrialization process, humans become increasingly concentrated in urban areas, having preferential contact with companion animals, namely cats and dogs. While farm animals are widely seen as property, companion animals are perceived as family members with whom humans keep close bonds and develop strong emotional relationships.[1]

At the same time, scientific advances in the field of veterinary medicine enable practitioners to reach accurate diagnoses faster and more reliably than before, allowing life-threatening illnesses to be identified in the early stages of their development. In addition, more advanced options of treatment are currently available which may sometimes be used to prolong the lives of animals as much as possible regardless of their quality.[2]


Decision upon animal euthanasia often takes into account the relief of pain and suffering. Animal dysthanasia occurs because there is no agreement upon the acceptable and recognizable endpoints of the lives of companion animals. This is due to several reasons. The keeper (guardian; owner) may wish to extend the animal’s life because he rejects euthanasia as an acceptable solution. On the other hand, the veterinarian may have a scientific interest on studying the progress of a specific illness or even a financial interest in keeping the patient alive.[3] The keeper and the veterinarian may also want to make use of all possible treatment resources before making the decision of euthanasia. Genuine belief on the animal’s recovery and emotional attachment can also interfere on the decision-making process of euthanasia. Situations like these can be especially problematic in some veterinary specialities like small animal oncology where the course of the disease may be difficult to predict and the treatments themselves can cause severe distress.

See also[edit]


  1. ^ Sandøe P & Christiansen SB (2008) "The Changing Face of Animal Ethics", Ethics of Animal Use. Oxford, UK: Blackwell Publishing pp.1-14
  2. ^ Rollin BE (2006) "Euthanasia and quality of life", Journal American Veterinary Medical Association, 228(7): 1014-1016
  3. ^ Rollin BE (2005) “Ethics of Critical Care”, Journal of Veterinary Emergency and Critical Care, 15(4): 233-239