Dogs urinate in the middle of the night because they can't hold back their urine at night, so they pee in the house. This may be because the dog is too young and has poor ability to hold urine, or the owner does not walk the dog at night. Generally, dogs under eight months old will urinate in the middle of the night, because they are still in the ignorant development stage at this time and do not know how to hold back their urine. They will want to urinate when they urinate. Wait until the dog grows up and develop a habit. Owner It is best to take the dog out every night after dinner, which can effectively prevent the dog from peeing.