▼Family planning issues and pregnancy are frequent concerns in the medical care of patients with myasthenia gravis since disease onset often coincides with this time period on life. Pregnancy, delivery and breastfeeding represent in fact special situations in this group of patients; however, they are not associated with higher risks of complications compared to normal population. Pregnancy should be planned in consultation with the treating neurologist so that disease remission can be achieved before the patient gets pregnant. During pregnancy, pyridostigmine and glucocorticosteroids may be used. Treatment with azathioprine, methotrexate, mycophenolate mofetil, cyclosporine A as well as tacrolimus should be terminated and if necessary changed to glucocorticosteroids or intravenous immunoglobulins. Under certain circumstances, azathioprine as well as cyclosporine A may be continued. Severe exacerbations can be treated with intravenous immunoglobulins and plasma exchange. Fetal deformities such as arthrogryposis multiplex congenita or the fetal acetylcholine receptor inactivation syndrome (FARIS) are very rare conditions and can be recognized in early pregnancy by high-defi nition ultrasound. Myasthenia gravis is no indication for cesarean section. However, delivery should be accomplished in a centre with collaborating obstetrics, neonatology and neurology. Approximately 20 % of infants born to myasthenic mothers develop neonatal myasthenia and will be treated with pyridostigmine and in severe cases with plasma exchange. Here we discuss typical case constellations providing a basis for medical care and individual counseling of myasthenia gravis patients, either already pregnant or presenting with questions related to family planning.