Taking lithium carbonate pregnancy may have some effect on the fetus, it is recommended to strengthen the examination during pregnancy, at the same time pay attention to maintain the stability of the condition, do not suddenly stop using the drug. In principle, the use of lithium carbonate is prohibited for women in the first trimester of pregnancy, and the use of the drug during this period may cause risks such as abnormal development of the fetus, but rashly changing the drug, stopping the drug, decreasing the dosage of the drug, resulting in poor control of mania, bipolar affective disorder, etc., will also have a potential impact on the fetus. Therefore, it is recommended to maintain the current effective drug therapy, may be appropriate under the guidance of the physician to adjust the dose of medication according to the condition, but do not easily change the drug, the use of the lowest effective dose, to maximize the safety of the mother and the fetus, and regular review of the disease control, strengthen the prenatal checkups to the physician to explain the condition, the recommendation of standardized obstetric examination. In addition, after understanding the possible risks, whether to terminate the pregnancy or not, need to be in the person and his/her guardian to jointly decide. If adverse reactions such as irritable thirst, diarrhea and vomiting occur during the administration of lithium carbonate, immediate medical attention is required. Breastfeeding is required to stop breastfeeding; the drug is contraindicated in renal impairment, severe heart disease, etc. Unauthorized use of the drug is prohibited.