Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Secondary infertility caused by the retention of fetal bones after an abortion: a case report | Journal of Medical Case Reports BioMed Central Open Access Case report Secondary infertility caused by the retention of fetal bones after an abortion a case report Hannah MC Kramer 1 and Johann PT Rhemrev2 Address 1Medisch Centrum Haaglanden Department of Gynaecology Delft The Netherlands and 2Bronovo Ziekenhuis Department of Gynaecology The Hague The Netherlands Email Hannah MC Kramer - Johann PT Rhemrev - Corresponding author Published 17 June 2008 Received 28 November 2007 Journal of Medical Case Reports 2008 2 208 doi l752-l947-2-208 Accepted 17 June 2008 This article is available from http content 2 l 208 2008 Kramer and Rhemrev licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Unwanted contraception through prolonged retention of fetal bone is a rare cause of secondary infertility. It is usually associated with a history of abortion either spontaneous or induced. Case presentation We describe a case of intrauterine retention of fetal bone diagnosed 8 years after the termination of a pregnancy. The patient had no complaints of pain irregular vaginal bleeding or discharge. A hysteroscopy was performed and irregular structures were removed. These fragments were fetal bones which probably functioned as an intrauterine contraceptive device. After removal of the fetal bone fragments the patient conceived spontaneously within 6 months. Conclusion This case report stresses the importance of taking a thorough history and evaluation of the endometrium by transvaginal ultrasound or hysteroscopy in women with secondary infertility. Introduction Since 1973 over 38 million legal abortions have been performed in the USA. .