Patients with sore and painful arms, clinically common causes are mainly the following: 1, patients after a long period of activity and did not carry out muscle relaxation at the arm, will cause more local lactic acid and other metabolic waste accumulation, thus causing the symptoms of soreness and pain. In this case, the patient can take proper rest, appropriate local massage physiotherapy, hot towel wet compress, promote the faster absorption of lactic acid and other metabolic waste, improve the local soreness and pain symptoms. 2, patients with venous thrombosis in the upper limb veins, can cause significant obstruction of venous blood return, a large amount of blood can be blocked in the distal arm, thus causing local soreness and pain. Patients can clarify the condition through vascular ultrasound examination, and need to give timely anticoagulation, dilation, diuresis and other supportive treatment to promote the dissolution and absorption of the thrombus in the blood vessels faster, which can reduce the soreness and pain of the arm and achieve better treatment results.