Air conditioning leg pain is due to poor circulation, rheumatoid arthritis, lumbar disc herniation and other diseases. 1. Poor blood circulation: air conditioning temperature is too low will lead to the legs by the cold air attack, which causes leg muscle vasospasm occurs, resulting in poor blood circulation in the legs, causing the symptoms of leg pain. 2. Rheumatoid arthritis: Rheumatoid arthritis can cause the patient’s joints to appear swollen, red, pain and pressure symptoms. Air conditioning temperature is too low, leading to the aggravation of leg pain symptoms, causing leg pain. 3. Lumbar disc herniation: patients with lumbar disc herniation have a history of leg pain, air-conditioning because the environment temperature is lowered, resulting in weakened blood circulation in the nerve roots, aggravating the clinical symptoms of leg pain, and excessive blowing of air-conditioning will cause leg pain symptoms to aggravate. Air conditioning leg pain patients should pay attention to leg warmth in daily life, avoid excessive air conditioning; patients who can not be relieved in time, please consult a doctor in time, active treatment, so as not to delay the condition.