https://medicra.umsida.ac.id/index.php/medicra <p>This journal published by Medical Laboratory Technology Department, Health Science Faculty of Universitas Muhammadiyah Sidoarjo. Medicra journal published two times a year in July and December. The aim of this journal is to facilitate lecturers, researchers, and scholars for publishing the original research articles or review articles. Articles to be published on Medicra&nbsp;should follow the&nbsp;focus and scope of this journal. &nbsp;The article must have been edited according to the journal author guidelines before submitting. The scope of this journal are: Clinic Chemical,&nbsp;Hematology, Microbiology, Parasitology, Immunology, Food and beverage analysis Chemical, Molecular Diagnostics, Toxicology, Cytology, Histology, Epidemiology, Laboratory Management, and Laboratory Quality Control.</p> Universitas Muhammadiyah Sidoarjo en-US Medicra (Journal of Medical Laboratory Science/Technology) 2580-7730 https://medicra.umsida.ac.id/index.php/medicra/article/view/1771 <p>Infertility is big problem with some couples, infertility is an inability to get pregnancy and live birth after one year of marriage. There are many causes for this problem. In vitro fertilization (IVF) is one of the process to treat infertility. &nbsp;In vitro fertilization is includes induction of the ovaries to produce numerous oocytes, than fertilize the oocytes and development of the embryo, finally transfer the embryo. The most important reasons for repeated failure in vitro fertilization (IVF) cycle are related to the male characteristics, such as low semen concentration low sperm motility and morphology of sperm, there is a relationship between sperm quality and IVF outcome. Most of the maternal factors that contribution in decrease implantation and IVF cycle are uterine anomalies, adhesions, septa, and many more. Other factors such as body mass index (BMI), and smoking status for failure IVF. In this study review some of the causes of failure In vitro fertilization.</p> Mudhafar Abdolhussein M Copyright (c) 2025 Mudhafar Abdolhussein M http://creativecommons.org/licenses/bv/4.0/ 2025-03-06 2025-03-06 8 1 1 4 10.21070/medicra.v8i1.1771