Antinuclear antibody positivity without medication may affect the fetus, depending on the cause of the antinuclear antibody positivity. Common causes of positive antinuclear antibodies include immune system diseases as well as chronic infections and tumors.
Common immune system diseases include systemic lupus erythematosus, rheumatoid arthritis, and dry syndrome. These diseases may lead to miscarriage or malformation of the fetus if no treatment is taken. Chronic infections and tumors may also affect the development of the fetus, so timely medical attention is also needed.
Patients who are found to be positive for antinuclear antibodies after pregnancy should consult the gynecology department or immunology department of the hospital in a timely manner. After identifying the cause of the disease, reasonable treatment should be taken under the guidance of the doctor to avoid affecting the health of the pregnant woman and the fetus.