Disordered proliferative endometrium is a result of an anovulatory cycle that lacks ovulation and leads to high levels of estrogen from low progesterone levels. The University of Virginia School of Medicine describes anovulation as the absence of ovulation during the reproductive years, not including pregnancy, and is the most common cause of dysfunctional uterine bleeding. Anovulation commonly occurs at menarche and at menopause.Know More
The exact cause of anovulation is not fully understood, according to the University of Virginia School of Medicine. In the absence of progesterone, the spiral arterioles do not develop properly. Once estrogen levels decline, there is a loss of stromal fluid and potential break-through bleeding occurs. However, in some cases when there is no drop in estrogen levels, bleeding can still occur because the necessary blood flow to the proliferative endometrium is not steady.
In a histological test, doctors can determine that there is estrogen stimulation but no progesterone production. When endometrial glands are proliferative, a histology report shows changes in the shape and structure, which are subtle. One of these mild changes is cystic dilation. When the stroma is broken down, pieces of isolated glands do not secrete, notes the University of Virginia School of Medicine.Learn more about Reproductive Anatomy
Uterine ablation is the surgical removal of the endometrium, the tissues lining the uterine wall, according to Healthgrades. Doctors use this procedure to treat unusually heavy menstrual bleeding. Unlike more invasive procedures, such as hysterectomies, uterine ablations do not require incisions or the cutting of tissues.Full Answer >
Proliferative endometrium refers to the process of the building up of the lining of the uterus just prior to ovulation. Ovulation is the period in the menstrual cycle of a female mammal when an egg is released from the ovaries for possible fertilization. Profilerative endometrium is a necessary part of the cycle, as it ensures that the uterine lining is prepared for the implantation of the fertilized egg.Full Answer >
According to WebMD, low progesterone levels are usually caused by problems with ovulation or a possible miscarriage. There are several conditions that can result in a change in progesterone levels.Full Answer >
The follicle is generally 18 to 24 millimeters at ovulation, according to Mainline Fertility & Reproductive Medicine, Ltd. It is not normally this size; it grows to this size before it releases the egg. Generally, only one follicle releases an egg each cycle.Full Answer >