Because the resistance of the elderly is relatively poor, if there is chills and shivering all over the body, the most common cause is infection. It is recommended to monitor the body temperature to see if there is fever, whether it is accompanied by coughing and coughing, abdominal pain, diarrhoea, frequent urination, urgent urination, painful urination and other symptoms, and then initially determine the site of infection, go to the hospital to further improve the blood routine, urine routine, chest CT, chest X-ray, urological ultrasound and other related tests to clarify the cause, and The cause of the disease should be identified and treated promptly. In addition to infection, anaemia, metabolic diseases and hypotension may also cause chills and shivering, which should be differentiated.