He is 4 and he is biting his leg and biting off chunks of hair
We got this shih tzu from a friend. From day one he would cry and run around in circles and luck and bite his legs. I took him to the vet they thought he had kidney stones so they changed his food to urinary dog food to help with the stones. He is scratching and bites hisself every time we bring him in from a walk or after he wakes up from a nap. He sleeps slot.