Types of Myopathies refer to muscle diseases. Since myopathy is not as common as other medical conditions, there is a strong chance that you have not heard of it. You may have concerns about the diagnostic process, its various types, and what to expect regarding prognosis and treatment. You may have many questions about its different types, and what to expect regarding prognosis and treatment. Understand that according to some Neurologists most myopathies experience weakness in the shoulders, upper arms,