Cold can aggravate the symptoms of joint discomfort in rheumatoid arthritis patients, so patients should pay attention to keep their body warm on a daily basis. Rheumatoid arthritis may be related to autoimmunity, genetic factors, infections, smoking, etc. It is an autoimmune disease. The disease is mainly characterized by joint lesions. Common symptoms of patients include morning stiffness, which can be alleviated or disappear after getting up and moving appropriately or warming the limbs. When the weather is cold, the blood vessels around the joints contract and the blood supply decreases, which will lead to a decrease in local blood circulation in the diseased joint tissues, thus leading to the occurrence or aggravation of joint stiffness and pain. Therefore, cold can aggravate the symptoms of joint discomfort in rheumatoid arthritis patients. In daily life, rheumatoid arthritis patients should pay attention to body warmth, avoiding cold in the joints. If the joints are cold, hot compresses and massages can be used to promote local blood circulation, thus improving the discomfort. Rheumatoid arthritis patients are advised to go to the hospital for consultation, actively standardize the treatment under the guidance of the doctor, and visit the doctor regularly for review in order to monitor the changes of the condition.