Dogs will die if diabetes is not treated, because diabetes will make dogs lose weight, drink too much water, urinate too much, vomit and so on. Dogs will die if they stay in this state for a long time, so if diabetes is not treated, uncontrolled diet will easily lead to death. Dogs die of diabetes. Dogs will die of diabetes, because diabetes is very easy to erode the dog's body. Symptoms are eating a lot, drinking more water, urinating more, sugar will be entrained in urine, the body will continue to lose weight, and even bones will be exposed in a short time. Therefore, the owner needs to control the dog's eating habits to avoid too much sugar in the food, which will lead to the dog not being treated in time and dying within six months.