Consider factors such as muscle injury, whiplash, or medication side effects for arm strain muscle soreness. Trauma, long-term arm posture fixed or often weight-bearing activities, can lead to arm muscle strain, muscle metabolic lactic acid produced after the accumulation, can not be quickly absorbed, muscle soreness phenomenon. There is also arm muscle cold, can cause muscle spasm, metabolic products accumulation caused by muscle pain. Neurogenic cervical spondylosis, intervertebral disc compression of the nerve, can cause nerve conduction dysfunction in the upper extremities, resulting in localized soreness, skin numbness, muscle weakness and other clinical symptoms. Prolonged oral administration of statin drugs, due to the side effects of the drug, manifests soreness of the arm muscles. If arm muscle soreness cannot be relieved after rest, it is recommended to actively seek medical attention and treatment under the guidance of a physician.