Problem behaviours such as digging, jumping, barking and scratching furniture may be handled well by a trainer. Experienced and qualified trainers can manage and prevent many issue behaviours. Understanding how animals learn, how to teach them, and how to teach you, are the core ingredients of effective and skilled training.
Behavioural issues however, such as those related to anxiety and aggression, repetitive behaviours such as tail chasing and self-mutilation, dementia and elimination issues (toileting in inappropriate places) can be both mental and/or physical diseases which require expert help.
A veterinary behaviour consultant has the skills to diagnose psychological issues, develop an appropriate behaviour modification plan and prognosis and provide or manage drug therapy. Medical conditions which may be contributing to the behaviour can also be assessed and addressed accordingly.