Some of the recurrent fevers with leukopenia belong to hematologic diseases, some are caused by the presence of infections, and some have a certain relationship with autoimmunity.
1. Blood system diseases: aplastic anemia, hemophagocytic syndrome, paroxysmal sleep hemoglobinuria and bone marrow metastatic carcinoma, etc., in the white blood cell decrease at the same time, can also appear recurrent fever.
2. Infections: some gram-negative bacillus infections, such as typhoid fever, paratyphoid fever, viral infections, such as influenza, viral hepatitis, chicken pox, rubella, cytomegalovirus, or protozoan infections, such as malaria, black fever, the leukocytes are abnormally low, and fever is easily to appear due to infections.
3. Autoimmune diseases: such as systemic lupus erythematosus, which can lead to a decrease in white blood cells due to autoantibodies. It is also accompanied by recurrent fever.
There may be other reasons for the recurring fever with decreased white blood cells, so it is recommended that the patient go to a regular hospital for examination to clarify the cause of the disease and then cooperate with the doctor for treatment.