There are several medical issues that can interfere with potty training. Dogs with a urinary tract infection (UTI) will urinate frequently in small amounts, and will not have much control. You may also notice excessive licking of their genital region. If you notice a change in the consistency of their stool, the cause could be a gastrointestinal issue. Some common causes in puppies are intestinal parasites, having eaten something not in their normal diet, or a sudden food change. If a food change is necessary, do it gradually over 5 to 7 days. If you suspect any of these issues could be a problem, you should consult with your veterinarian.
Introduce your new pup to its new home, family and their role. Just like when you are new to a place or group, your new pet may be bursting with curiosity, excitement, fear or joy. Now is the best time to lay out the foundation for a good and pleasant relationship with your pet. For a puppy to settle in and learn to trust and respect you and everyone at home, it is very important to establish your expectations of your puppy and be consistent with them.
It’s best not to punish the puppy for making a mistake. Instead, focus on praising appropriate bathroom behavior. If you catch your puppy in the act, interrupt it by saying “No!” in a firm voice or clapping your hands loudly, then take the puppy outside to finish going to the bathroom. Never swat your puppy, yell at it, or try to rub its nose in the mess.
Lindsay says of this study, "Schilder and Van der Borg (2004) have published a report of disturbing findings regarding the short-term and long- term effects of shock used in the context of working dogs that is destined to become a source of significant controversy ... The absence of reduced drive or behavioral suppression with respect to critical activities associated with shock (e.g., bite work) makes one skeptical about the lasting adverse effects the authors claim to document. Although they offer no substantive evidence of trauma or harm to dogs, they provide loads of speculation, anecdotes, insinuations of gender and educational inadequacies, and derogatory comments regarding the motivation and competence of IPO trainers in its place." 
In October 2012, Millan appeared on The Alan Titchmarsh Show. Titchmarsh called his methods "cruel" and "unnecessary", citing a video in which, Titchmarsh said, Millan punched a dog in the throat. Millan called it a touch, not a punch. Titchmarsh read out an RSPCA statement saying that "Adverse training techniques which have been seen to be used by Cesar Millan can cause pain and fear for dogs and may worsen their behavioural problems." Writing in the British newspaper Metro, features writer, Andrew Williams, described the interview as the first time that Titchmarsh has "deviated from his usual interview strategy – which runs the gamut from mild to wild sycophancy" and described him as "probably the only celeb Millan has failed to win over..."
Unfortunately, there is no magic length of time or milestone age when a puppy can be considered fully housetrained and there are many factors that go into how quickly a puppy can be potty trained. Your puppy’s age plays a major role during the initial phase of potty training, as a very young puppy won’t have the muscle control necessary to hold it for long periods of time.
When she feels an urge, the puppy will usually let you know by whining and scratching. That’s her signal that she has to go and wants out of her little den. Now! Don’t delay because if you let your pup lose control in her crate, she’ll get the idea that it’s OK to mess up her living space. Then she’ll think nothing of leaving little packages around where you live, too.
Learned helplessness occurs when a dog ceases to respond in a situation where it has no option to avoid a negative event. For learned helplessness to occur, the event must be both traumatic and outside the dog's control. Family dogs that are exposed to unpredictable or uncontrolled punishment are at risk of developing disturbances associated with the learned helplessness disorder. Punishment which is poorly coordinated with identifiable avoidance cues or response options, such as when punishment takes place long after the event, meet the criteria of inescapable trauma.
Millan's first job in the United States was at a dog grooming store. He later created the Pacific Point Canine Academy. Jada Pinkett Smith became one of Millan's first clients and supporters when he was working as a limousine driver, providing him with an English tutor for a year. Subsequently, Millan created the Dog Psychology Center, a two-acre (0.81 ha) facility in South Los Angeles, specializing in working with large breed dogs.
^ Vranica, Suzanne (September 10, 2009). "'Dog Whisperer' Hopes to Lead Pack at Newsstand". The Wall Street Journal. Archived from the original on November 7, 2017. Almost half of USA's consumers already know who he is, and consumers' awareness of Mr. Millan has grown 12% since May 2008, according to Davie-Brown, an Omnicom Group company that tracks the appeal of celebrities.
There are a variety of established methods of animals training, each with its adherents and critics. Some of the better known dog training procedures include the Koehler method, clicker training, motivational training, electronic training, model-rival training, dominance-based training, and relationship-based training. The common characteristics of successful methods are knowing the animal's attributes and personality, accurate timing of reinforcement and/or punishment and consistent communication. The use of punishment is controversial with both the humaneness and effectiveness questioned by many behaviourists.