Low fever for a month, no cause found


Restoring balance, one patient at a time.
Low-grade fever can not be detected for a month, may be caused by infectious diseases, autoimmune diseases, malignant tumors, etc.
1. Infectious diseases such
as viruses, bacteria, fungi and other infections, such as tuberculosis, AIDS, EB virus infection, etc.
2. Autoimmune diseases such
as systemic lupus erythematosus, rheumatoid arthritis, Sjogren's syndrome, etc., can lead to low-grade fever.
3. Malignant tumors such
as lymphoma, leukemia, lung cancer, etc., may also appear low-grade fever.
In view of this situation, it is recommended to further improve the examination, such as blood routine, C-reactive protein, erythrocyte sedimentation rate, autoantibodies, tuberculin test, chest X-ray, CT, bone marrow puncture, etc., to determine the cause.