Myasthenia gravis (MG) often occurs in women of childbearing age between 20 to 45 years, and changes in MG′s condition during pregnancy are often difficult to predict. Continue pregnancy may be considered for pregnancy with MG mild cases, and severe cases should be terminated. During pregnancy, supervision should be strengthened to maintain the stability of the condition and ensure the safety of the mother and the fetus. It is safe to take anti-cholinesterase drugs, immunosuppressant and immunoglobulins for MG patients during pregnancy. In addition, MG is not an indication for cesarean section; it can be delivered naturally through the vagina. Newborns may have transient muscle weakness, but it is often temporary.