When should you euthanize a dog?

Hello: You know when to put your dog " to sleep" .... When you see the quality of life is poor. Also, if you see your best pal in uncontrolled pain and discomfort. It is a hard thing to do but many times it is the Right choice to make. If your pal is able to stand on his own two feet and able to go potty. Also, if your pal is able to eat and keep the food down.... then, sounds like he is doing well. When a dog is unable to get up and do his business outside..... When a dog is in uncontrolled pain..... then it is time. I hope this has helped you in this hard time.