Sweating but cold body may be caused by low blood sugar, low blood pressure, hyperthyroidism and other factors. 1. Hypoglycemia: patients usually have the phenomenon of sweating but cold body, often accompanied by tremor, anxiety, palpitation, sensory abnormalities and other symptoms, you can check the blood sugar on an empty stomach for a clear diagnosis. 2. Hypotension: when the arterial pressure in the body circulation is lower than normal, it may lead to neurological dysfunction of the patient, resulting in excessive sweating, pale skin, cold and hot body and other manifestations. This condition may also appear to sweat on the body cold phenomenon, through the measurement of blood pressure can help diagnosis. 3. Hyperthyroidism: Due to the accelerated metabolism of the body, patients may experience symptoms of excessive sweating, which may also be accompanied by symptoms such as fear of heat and loss of weight, which can be diagnosed by checking the level of thyroxine. Sweating with coldness may also occur when the air temperature is high, which is not a cause for concern. If sweating with coldness occurs frequently, it is recommended that the patient go to the hospital as soon as possible for a relevant examination to avoid delaying the condition.