Thrombocytopenia is commonly harmless and does not require treatment at the delivery, however the risk of maternal mortality and morbidity is going up when it is severe. In our case, a 26 years old pregnant women were determined who has severe thrombocytopenia one day before the delivery and platelet clusters were seen and functions were detected normally in peripheral smear, whereas the number of platelet was normal onset of the third trimester. After vaginal delivery, violent vaginal bleeding was arised and medical treatment and blood/blood products replacement was performed quickly. Iv methylprednisolone was implemented for considered of immunological reason. Because of ongoing bleeding, bakri balloon was established in uterine cavity and vaginal stype was placed for compression and they were removed after 24 hours with reduction of bleeding. The patient was discharged on the sixth day as platelet count was in normal range. Thrombocytopenia was detected again at the sixth week control visit and she had minimal vaginal bleeding. She used oral methylprednisolone for considered of immunological reason and after seven days, platelet count increased.