Double knee pain, cold and other symptoms may be cold, arthritis, lower extremity vascular disease and other factors. 1. Cold: knee joints in a cold and wet environment for a long time, or wearing too little clothing, directly blowing the air conditioning, etc., can lead to the knee part of the cold, local vasospasm contraction, poor blood circulation, can cause bilateral knee pain, cold and other uncomfortable symptoms. 2. Arthritis: bilateral knee osteoarthritis, rheumatoid arthritis and other diseases, which can lead to the destruction of joint bone, local blood vessel erosion, resulting in bilateral knee pain and cold performance. 3. Lower extremity vascular diseases: arterial occlusion or varicose veins and other vascular diseases in the lower extremities can cause poor blood circulation around the knees, reducing local blood supply, causing knee pain and cold and other discomforts. When double knee pain, cold, should promptly consult a doctor, under the guidance of specialists to actively carry out appropriate treatment, will help early relief of discomfort symptoms.