Prolonged low fever requires prompt medical attention to find the cause, clarify the diagnosis, and follow the doctor’s instructions.
Prolonged low fever, i.e., long-term low fever, usually with body temperature around 37.3-37.9℃, is commonly found in tuberculosis, hematologic diseases, chronic infections and so on.
1. Tuberculosis: Mycobacterium tuberculosis infection, common as tuberculosis, tuberculosis pleurisy, intestinal tuberculosis, etc. When Mycobacterium tuberculosis infects the human body, it not only shows local symptoms, such as coughing, etc., but also accompanied by systemic symptoms, mainly manifested by low fever in the afternoon, emaciation, night sweating, and fatigue.
2. Hematological system diseases: Hematological system diseases with low fever are common in hematological system tumors, such as leukemia, early symptoms of persistent low fever, when combined with infections, often accompanied by high fever symptoms.
3. Chronic infection: generally refers to the human body is infected by pathogens for more than 2 months, the infection foci persist, and the body’s immune system is in an even fight, often accompanied by long-term low fever symptoms.
The cause of long-term low fever is complex, it is recommended to consult a doctor for timely treatment.