Gestational disorders are diseases related to pregnancy. The most common gestational disorders include hypertensive diseases and preterm birth. Both have a major impact on women and their children’s lives shortly after pregnancy, as well as in later life. Other gestational diseases discussed are gestational diabetes, cholestasis of pregnancy, amniotic fluid embolism, thrombosis and urinary tract infection. The different pathophysiological mechanisms, treatment options and consequences for these pregnancy-related disorders are also described.