Positive antinuclear antibodies 1:100 may indicate a rheumatic immune disease, but can also be seen in infections, tumors and other diseases, and can also be found in some normal people.
Generally, a positive antinuclear antibody 1:100 is a mild increase in titer, which may be seen in rheumatic diseases such as systemic lupus erythematosus, dermatomyositis, dry syndrome, etc.; severe infectious diseases caused by bacteria, viruses, etc., hematological disorders, and neoplastic disorders may also be mildly positive for antinuclear antibodies. Mild elevation may also occur in some normal people.
In addition, the normal range of antinuclear antibody results may vary from one medical institution to another. It is recommended to repeat the test if necessary, and to consult the Rheumatology Department in a timely manner to improve the relevant examinations under the guidance of the doctor, so as to clarify the diagnosis and provide early treatment.