Muscle biopsy

In order to diagnose or differentially diagnose neuromuscular diseases, doctors remove muscles (soybean grain size) from certain parts of the body and examine them under a microscope or electron microscope. The location of the muscle is determined by the nature of the myopathy (distal or proximal involvement?) And the degree of disease progression. Muscle biopsy is traumatic, but it cannot be replaced by other tests at present, and all auxiliary tests, including genetic tests, cannot replace muscle biopsy.