Flaccid fever is also known as septic fever. It is a condition in which the body temperature is consistently above 39 degrees, with large fluctuations, and the range of temperature fluctuation is more than 2 degrees in 24 hours, but all are above normal level. The temperature of human body is formed by the heat generated from metabolic activities, skeletal muscle movements, etc. The balance of heat production and heat dissipation in the body is maintained through the thermoregulatory center in the lower thalamus, so the body temperature of normal people is relatively constant. Sometimes it varies slightly depending on the time of measurement, location, age, diet and exercise. So, what diseases should be differentially diagnosed with persistent flaccid fever? The following is a brief introduction: 1. Mostly high fever, body temperature is often above 39 ℃, the temperature changes between day and night within 1 ℃, can last for several days or weeks, see in some acute up to 39 ℃ or more, last for several hours and then drop to normal or below normal, intermittent hours to days and so repeatedly, called periodic fever. See in malaria, such as intermittent day malaria or three-day malaria.
2.Intermittent fever May reach 39℃ or above, and then drop to normal or below normal after a few hours, and then repeat again after a few hours to a few days interval, called periodic fever. It is seen in malaria, such as inter-day malaria or three-day malaria, etc.
Irregular fever The range of temperature fluctuation during fever is extremely irregular, and the duration is not certain, and the temperature curve is irregular. The body temperature is often around 38℃ or fluctuates between 37 and 40℃. It can be seen clinically in a variety of diseases, such as upper respiratory tract infection, mycoplasma pneumonia, tuberculosis, pleurisy, infective endocarditis, rheumatic fever, leukemia, etc. It can also be seen in interference with drugs or physical cooling.
4, wave fever The body temperature gradually rises, and then gradually drops to low fever or normal temperature after a few days, and then gradually rises again after a few days, and so on repeatedly, the body temperature curve is wave-shaped, which is seen in brucellosis.