The LLM (Legal Aspects of Medical Practice) aims to provide a sound knowledge of the legal rules applicable to, and the issues surrounding, the practice and administration of health care, as further changes make a deeper understanding of the field ever more significant. Sourced From: http://www.law.cf.ac.uk/courses/postgraduate/medical_practice/
Not every medical practitioner around works in accordance with the law, even our most trusted physicians may be rogue and we carry on believing in them just because they help us with any professional medical attention we need.
If someone dies as a result of the illegal practice of medicine, more serious charges, such as manslaughter, can apply.
Sourced From: http://www.criminaldefenselawyer.com/resources/practicing-medicine-without-a-license.htm
And sometimes ignoring the risks of not talking to your doctor can outweigh the few moments of discomfort you may feel in raising sensitive health concerns.
Sourced From: http://kidshealth.org/en/teens/talk-doctor.html