''Euthanasia'' , derived from the Greek words ' eu' (good) and 'thanatos' (death) , refers to the act of inducing a painless death to relieve suffering. In veterinary medicine, humane euthanasia of companion animals is carried out to end their lives in a controlled, painless, and compassionate manner when continued life entails unnecessary suffering due to terminal disease, severe injury, or irreversible decline in quality of life (Yeates, 2010). Reasons for Euthanasia Te