Amenorrhea
Amenorrhea is the absence menstrual periods. This is an indication of an underlying medical condition and the accompanying symptoms vary according to their causes. Treatment …
Women are born with about 1 million eggs in their ovaries and do not generate new eggs, unlike men, who produce sperm throughout their life.
From age 35, ovarian reserve of women starts to decline, and once they reach 40 poor quality eggs usually outnumber healthy eggs. Therefore, their chances of getting pregnant with their own eggs are significantly reduced.
The natural pregnancy rate for women under the age of 30 is approximately 20 to 30 percent per month. However, by the age of 40, the probability of conceiving decreases to 5 percent.
With that information in mind, the female infertility causes can be classified into:
Any hormonal imbalance or ovarian disorder can cause ovulatory alterations, which are responsible for about 25 percent of infertility cases in women. Some of the main ovulatory disorders are:
About 25 percent of female infertility cases are related to tubal factors. Fallopian tubes play a critical role in the reproductive process, since fertilization takes place within them and are also the means through which the newly formed embryo is transported to the uterus for its implantation and development.
Any damage to the fallopian tubes can cause infertility by preventing gamete (eggs and sperm) transport and fusion. It also prevents the transfer of the fertilized egg from the ovary to the uterus, increasing the risk of an ectopic pregnancy.
Tubal disorders are frequently caused by:
Between 5 and 12 percent of infertility cases are due to uterine defects, which can interfere with a proper implantation of the embryo and prevent the normal pregnancy development.
Some of the major uterine disorders are:
When a woman’s egg fertilized, 23 chromosomes of the mother and 23 chromosomes of the father join together to constitute 46 chromosomes that represent the genetic material of each cell in the resulting embryo.
Genetic alterations may be caused by problems in one or both genes or chromosomes of the embryo. In some cases, these genetic problems can cause infertility or recurrent miscarriages, as they affect the embryo’s ability to implant and develop inside the maternal uterus.
Major embryonic disorders are:
Amenorrhea is the absence menstrual periods. This is an indication of an underlying medical condition and the accompanying symptoms vary according to their causes. Treatment …
Anovulation is the ovulation absence that occurs when the ovaries are not capable of releasing the eggs they contain. This is usually caused by hormonal …
Endometriosis affects fertility by causing the formation of pelvic adhesions, which are scar tissue bands that form between pelvic organs (ovaries, fallopian tubes, uterus, bladder …
Hydrosalpinx is an alteration where one or both Fallopian tubes are blocked and dilated due to an accumulation of liquid inside, usually as a consequence …
Hyperprolactinemia is characterized by an increased blood prolactin level. This is the hormone responsible for stimulating the growth of a woman’s breasts during pregnancy and …
Hypothyroidism is a consequence of thyroid gland decreased activity, which means that it does not produce enough thyroid hormones and therefore slows overall metabolism rate. …
Insulin resistance is an insufficient response of body tissues to this hormone, whose primary function is to control glucose levels in the blood. Having high …
A person is considered obese when his or her body mass index (calculated by dividing weight in kilograms over height squared in centimeters) is greater …
Ovarian cysts are fluid-filled sacs that develop in the ovaries that may hinder a normal ovulatory process Ovarian cysts can be benign or malignant depending …
Ovarian reserve is the number of eggs present in a woman’s ovaries. Statistically, women over 35 begin to have a noticeable reduction in ovarian reserve …