Myopathy.

Myopathy is a general term applied to disorders of muscles. It can include dysfunction, weakness, pain, and deformity as well as wasting. There are two categories used to describe the disorders: genetic and acquired. Of the latter classification, the condition may be transient or permanent, depending on the etiology. Acquired myopathy is most often the result of electrolyte imbalance, hormonal imbalance, infection, inflammation, or toxins. Injury is also commonly responsible. There are divisions of this classification, which include inflammatory, secondary to systemic disorders, and toxic. Genetic myopathies are divided into multiple categories as well: congenital, metabolic, mitochondrial, and muscular dystrophies. Each of the aforementioned categories is further subdivided.