There also behavioral issues that can interfere with successful training. Urine marking is a normal dog behavior in which the animal will hike their leg and mark a certain area or object. With separation anxiety, the puppy may have accidents inside when you leave them at home alone. Some puppies become nervous or upset when their owners are away. Other puppies have a submissive or excitement urination problem. This causes them to spontaneously urinate during certain activities. Discuss these possibilities with your veterinarian or trainer if you're not getting positive results.
The process is the exactly same for older dogs as it is for puppies; prevent accidents from happening by using baby gates and a crate if possible, create a predictable schedule, learn to recognize your dog’s potty signals, accompany your dog outside and immediately reward for all outdoor elimination, properly clean any accidents and supervise your dog until you’re sure that he understands the rules.