Low fever with sweating is usually caused by the following reasons: First, the most common cause is infectious factors, usually due to bacterial infections that lead to fever and sweating, which is a pre-cold symptom and is called wind-heat type of cold from the perspective of Chinese medicine. Second, low fever accompanied by sweating is usually related to endocrine system disorders in the body, often due to diseases with high basal metabolic rate, such as hyperthyroidism, hyperadrenocorticism will appear such clinical symptoms. Third, fever, hypothermia and sweating are also related to the pre-stroke, which occurs in the summer when the above-mentioned symptoms are present, followed by sweating and fever. Fourth, it is also related to the ionic disorder in the body, and the above clinical symptoms may occur when hyponatremia is common.