These days, the Department of Internal Medicine of Shunyi Women’s and Children’s Hospital of Beijing Children’s Hospital received three or four similar patients: women are common, recurrent low-grade fever, high body temperature but seldom more than 37.6 ℃, up to more than 2 weeks or even 2 months; there are no respiratory symptoms, and there is no obvious headache, fatigue, chills and other fever accompanied by symptoms, and even without any physical discomfort. “It’s time to return to work soon, my temperature always hovers around 37.3℃-37.5℃, could it be a new crown pneumonia?” A patient and his family were very worried. “Hypothermia is a common symptom, usually referred to as below 38°C, sometimes caused by anxiety and stress.” Shunyi Women’s and Children’s Hospital internal medicine doctor Ma Yanqiu introduced, the above received several patients, in the improvement of routine blood, urine routine, biochemistry, chest imaging and other tests, no abnormalities were found, combined with the patient’s state of mind, physical examination results, etc., the doctor’s initial consideration of functional hypothermia. Of course, if the final diagnosis should be completed thyroid, tumor, autoimmune disease, tuberculosis and other related tests. What conditions may cause low fever? Infectious hypothermia is caused by bacterial and viral infections such as tuberculosis, chronic biliary tract infections, chronic pyelonephritis, chronic urinary tract infections, chronic pelvic inflammatory disease, chronic otitis media, chronic sinusitis, subacute endocarditis, and HIV. Non-infectious hypothermia hyperthyroidism, rheumatic fever, lupus erythematosus, blood diseases, tumors, and drug fever. In addition, summer hypothermia often occurs in people who are physically weak, or after an illness. Other reasons emotional instability, excessive tension and other psychosomatic reasons can also cause central thermoregulatory disorders, resulting in unexplained hypothermia, which is categorized as functional hypothermia. This time, Ma Yanqiu received a patient, daily panic about whether he is suffering from new crown pneumonia, every hour to measure the temperature. After consulting with the doctor to rule out new coronary pneumonia, he was still uneasy and surrounded the doctor for repeated consultations, even returning to the clinic several times to consult, looking very nervous. No special discomfort does not have to repeatedly measure the temperature Ma Yanqiu introduction, functional hypothermia, including vegetative nerve dysfunction (primary hypothermia), summer fever, etc., the clinical characteristics of the body temperature is higher than normal 0.3 ℃ -0.5 ℃, not more than 38 ℃, the heat type has a relative law: the temperature difference between the day is not large (difference of 0.5 ℃), can be accompanied by the manifestations of vegetative nerve dysfunction, the examination is normal, the patient is not due to prolonged hypothermia. The patient’s health is not affected by prolonged hypothermia. Functional hypothermia is mainly diagnosed by a longer period of dynamic observation and exclusion of various organic diseases. Ma Yanqiu suggests that adjusting the mindset, home isolation, the daily life is well organized, you can also read, write, draw, listen to music, watch TV, play games with family members, exercise, etc., so that the home life is not boring; monitor the body temperature twice a day, no special discomfort does not have to be repeated several times to monitor; there is discomfort or a significant rise in body temperature in a timely manner to seek medical attention. Source: New Beijing News