Is it normal for a low-grade fever to subside in one day?
Yesterday I suddenly had a mild fever and felt weak all over, but today the fever subsided. This mild fever only lasted a day; I wonder if that's normal. Could there be some other underlying health issue?
Doctor's answer (1)
Low-grade fever refers to a mild fever. In general, it is normal for a mild fever to subside within a day.
A low-grade fever is a nonspecific response of the body to certain stimuli or infections. Sometimes, mild infections, allergic reactions, medication responses, or the body's own regulatory mechanisms can cause a low-grade fever. If the patient's immune system is relatively strong and the infection or stimulus is mild, the low-grade fever may resolve on its own within a short period, indicating the body's self-recovery capability.
However, if the low-grade fever is accompanied by other symptoms such as severe headache, rash, or persistent coughing, even if the fever lasts only a day, it should be taken seriously. Further examinations may be needed to rule out other diseases, such as pneumonia, infectious diseases, or autoimmune diseases. If symptoms persist or are accompanied by other discomforts, timely medical attention is recommended to avoid delaying treatment.
In daily life, it is advisable to maintain adequate rest, a balanced diet, moderate exercise, and good personal hygiene habits, which can help enhance the body's resistance.
