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  » Infertility  »  Testing women that have not tried to get pregnant

A (fairly) normal uterine cavity and endometrial lining are necessary in order to conceive and maintain a pregnancy. There are several conditions related to the cavity or the lining that can cause problems.

When a woman has her menses (period) the endometrial lining of the uterus and some associated blood is shed. Then a new lining is regenerated over the next few weeks or so and eventually becomes receptive to possible

implantation of an embryo. If no embryo implants (she is not pregnant) her body recognizes that she is not pregnant at the end of that menstrual cycle and it sheds the lining and starts the regeneration process over again.

Ultrasound images of a uterus with a normal endometrial lining that is 11.5 mm thick. Image on right shows the uterus outlined in blue and the "triple stripe" uterine lining (landing pad for the embryos) outlined in yellow. Cervical canal is also well visualized. The vaginal area can not be seen because the ultrasound probe is in the vagina.