Body temperature of 35.53 ℃, no physical discomfort is generally not serious, but need to consult a doctor in a timely manner, improve some of the relevant examinations, to rule out the primary disease, such as hypothyroidism, etc., to rule out some of the medications taken by the history of the cause, such as antipyretic drugs, etc.. The normal body temperature (axillary temperature) is 36.5-37.3 ℃, body temperature 35.53 ℃ is on the low side, if there is a history of taking antipyretic medication, you need to stop taking the medication in time, and measure the axillary temperature several times and record it, to see if it is always on the low side. If the body temperature has been at a low level, you need to go to the hospital in time to complete the relevant examinations to exclude some primary diseases, the thyroid function test can exclude the primary thyroid disease, low body temperature needs to supplement some energy, try to eat some high-energy food in the diet, pay attention to exercise. For persistent low body temperature may be the clinical manifestation of other primary diseases, we need to consult a doctor in time, under the guidance of the doctor to improve the relevant examination, to identify the cause of the disease.