Skeletal muscles are usually considered as organs, and organs are formed by combining several tissues with each other, while skeletal muscles not only have transverse muscles, but also have blood vessels, nerves and lymphatic vessels distributed, so each skeletal muscle can be considered as an organ. The skeletal muscles of the human body are usually divided into head and neck muscles, trunk muscles and limb muscles according to different parts. Injuries to each skeletal muscle should be diagnosed and treated early to restore the form, function, strength and intensity of the skeletal muscle, and also to restore the blood supply and innervation of the skeletal muscle. If the blood supply and innervation of the skeletal muscle are abnormal, the skeletal muscle will show disuse atrophy, dystrophic atrophy, and eventually affect the function of the whole skeletal muscle.