Uterus

Definition - What does Uterus mean?

The uterus is a major female sex organ; its primary role is to house and nourish a developing fetus prior to birth. There are several conditions that may impact the uterus, causing complications or preventing pregnancy or successful childbirth.

FertilitySmarts explains Uterus

The uterus is composed of three distinct layers: the outer layer, a thin shield of tissue called the perimetrium, the thicker muscular middle layer, called the myometrium, and the inner lining, called the endometrium.

Every month, in accordance with a woman's monthly cycle, the endometrium develops in a thick lining of blood and tissue. In the case of conception, the endometrium is prepared for embryonic implantation. If no pregnancy occurs, the uterine lining is shed during menstruation, and regrown in anticipation of the upcoming month.

Conditions that may impact the uterus’ ability to support or maintain a pregnancy include:

  • Uterine polyps
  • Fibroids
  • Endometriosis
  • Endometritis
  • Luteal phase defect
  • Prolapsed uterus
  • Congenital deformations, including bicornate uterus, unicornate uterus, septate uterus
  • Uterine cancer
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