IntroductionA spontaneous premature rupture of membranes in the early 2nd trimester considerably impairs the formation of the fetal skeletal system, as well as inhibiting the maturation of the lungs and kidneys due to the absence of amniotic fluid. Intrauterine infections can occur, which can also endanger the mother. This often leaves no other option than to advise the mother to terminate the pregnancy. Loss of amniotic fluid is observed in rare cases even after amniocentesis. In most cases, the defect is self-locking. In two-thirds of cases, abortion occurs, especially if larger amounts of amniotic fluid (15 ml) have been removed1. The termination of pregnancy is usually associated with considerable psychological stress for the patient.After Szendi 2 initially described total cervical occlusion, Saling 3,4 modified it in a prophylactic approach to habitual abortion. We successfully applied this method for many years in a prophylactic and therapeutic approach, modified it and always combined it with McDonald cerclage 5. The experience we had gained here placed us in a position to perform complete occlusion of the cervical canal and external os in two cases of ruptured membranes at 14 and 16 weeks of pregnancy, respectively.