Hypothyroidism refers to hypothyroidism. When the thyroid gland is hypothyroid, the body’s metabolic rate decreases and the ability to produce heat is reduced, which can lead to low body temperature. If this happens, it is important to keep the patient warm at home and to dress the patient in enough clothes to avoid excessive heat loss. It is also important to keep the ambient temperature appropriately high. In addition to this, a more important treatment is to target the hypothyroidism itself, which requires timely supplementation of thyroid hormones. In addition, if the body temperature is low, there may be other serious complications related to hypothyroidism, which should be promptly seen by a hospital.