What is uterus window?

The term "uterus window" is not commonly used in medical literature, so it is unclear what it refers to specifically. However, here are some possible interpretations:

• In the context of fertility treatments (such as in vitro fertilization or embryo transfer), a uterus window may refer to a time period during the menstrual cycle when the uterus is receptive to embryo implantation. This window typically lasts a few days around day 21 of a woman's cycle (or 5-7 days after ovulation). By timing embryo transfer during this window, doctors can increase the chances of a successful pregnancy.
• A uterus window may also refer to a thinning or opening of the cervix that occurs during labor. This is also known as cervical dilation. As the baby moves down the birth canal, the cervix gradually dilates from its closed state (0 cm) to fully open (10 cm). This allows the baby to pass through the cervix and into the vagina for birth.
• Another possible interpretation of uterus window is that it refers to a visual opening or "window" into the uterus during a medical procedure, such as a hysteroscopy or laparoscopy. These procedures involve inserting a scope (a thin, flexible tube with a camera) through the vagina and into the uterus to view the internal organs. A uterus window in this context would allow doctors to see more clearly into the uterus and make diagnoses or perform treatments more accurately.