What is the meaning of thickened endmetrium probably decidualized?

Thickened endometrium refers to a condition in which the lining of the uterus, called the endometrium, is thicker than normal. The endometrium normally thickens and grows in response to hormonal changes during the menstrual cycle, preparing for the implantation of a fertilized egg.
Decidualization is a process in which the endometrium undergoes changes and thickens further in preparation for pregnancy. If the egg is not fertilized, the endometrium will be shed during menstruation. Decidualization results in the formation of decidual tissue, which is thicker and more densely packed than the normal endometrium.
A thickened endometrium that is decidualized is a normal finding in early pregnancy, as it is a sign that the body is preparing for the implantation and growth of a developing fetus. However, a thickened endometrium can also be a sign of other conditions, such as endometrial hyperplasia or endometrial cancer, so it is important to consult a healthcare provider for a proper diagnosis and treatment plan. An ultrasound, biopsy, or other diagnostic tests may be necessary to determine the underlying cause of the thickened endometrium.