It is used to treat SLE, which is an immune system disease. Not taking it during pregnancy may lead to the recurrence of SLE disease, and in serious cases, it may lead to stillbirth, stillbirth and other pregnancy complications. Any drug taken has certain side effects, after all, it is a drug, according to the needs of the disease, in case the benefits outweigh the disadvantages, it must be taken in accordance with the doctor’s instructions in accordance with the dose, according to the course of treatment, not to increase the dose or stop the drug in private, so as not to affect the pregnant women themselves and the growth and development of the fetus. During pregnancy, it is also important to pay attention to strengthen maternity checkups, regular ultrasound examinations, blood tests, etc., to observe the growth and development of the fetus, and if there are any abnormalities, early treatment is needed.