Elevated body temperature and normal blood test may be caused by mycoplasma infection, chlamydia infection, hepatitis, blood diseases, rheumatic immune system diseases, oncological diseases and other reasons.
1. Mycoplasma infection, chlamydia infection: routine blood test can only determine whether there is a viral or bacterial infection, and by mycoplasma, chlamydia infection routine blood test can not detect abnormal values, need to do chlamydia mycoplasma laboratory tests.
2. Hepatitis: chronic hepatitis may also cause long-term persistent low fever, if necessary, can do the culture of pharyngeal secretions. To determine whether there is hepatitis virus infection.
3. Blood diseases: long-term low fever may also be caused by other diseases, such as in blood diseases, aplastic anemia, hemolytic anemia, etc. can also appear long-term persistent low fever.
4. Rheumatic and immune system diseases: Rheumatic and immune system diseases can also cause prolonged low-grade fever, which can be diagnosed by going to the rheumatology and immunology department for rheumatology and immunity examinations.
5. Tumor disease: Tumor disease can also cause prolonged low-grade fever, such as lymphoma, etc., which requires comprehensive examination.
Therefore, if you have persistent low fever but normal blood count, it is recommended to go to specialized hospitals for timely examination and diagnosis, so as to find out the cause of the disease and treat it accordingly.