Blood pressure and blood sugar are normal but generalized fever may be caused by physiological factors, or may be caused by infectious diseases, hyperthyroidism and other disease factors, it is recommended to consult a doctor. 1. Physiological factors: strenuous exercise, emotional excitement may promote blood circulation throughout the body, resulting in increased metabolism, followed by a generalized fever. 2. Disease factors: bacterial and viral infections can lead to infectious diseases, which can be manifested as generalized fever, or even hyperthermia; hyperthyroidism, due to the increase in thyroid hormones, can have a high metabolic state, and generalized fever occurs. If you have normal blood pressure and blood sugar, but have generalized fever, it is recommended that you go to the hospital and ask the doctor to make a judgment after eliminating physiological factors.