The causes of infertility, 2 / 3 is the blockage of the fallopian tubes womans is always the main reason, but from an emphasis on broadspectrum antibiotics to prevent infection and his creation, which causes inflammation of tube obstruction Gynecology Obstetrics tube has been greatly reduced; On the other hand, the understanding of endocrine diseases and review of the technology continues to advance, ovarian dysfunction, infertility due to the increased rate of diagnosis and ovarian infertility also occupies an important place . br ovarian factor infertility caused by infertility accounts for about 15% to 25%, ovary, infertility may be caused by several factors: br local ovarian factors: as the congenital absence of ovaries or ovaries immature type premature ovarian failure, polycystic ovary, some ovarian tumors, such as particles of theca cell tumor, testicular tumors, etc. can affect the stem cells of ovarian hormone secretion and ovulation. br systemic diseases such as severe malnutrition or a diet lacking in some major nutritional factors can affect ovarian function Erzhi infertility, chronic diseases, metabolic diseases such as hypothyroidism or hyperthyroidism, diabetes mellitus, adrenal dysfunction were also able to risk infertility. br central effects the hypothalamus, pituitary, ovary, between endocrine imbalance, pituitary tumor or the scar may cause ovarian dysfunction, infertility Erzhi; mental factors as the spirit bear or excessive anxiety can axis hypothalamic pituitaryovarian suppression impact on ovulation. br ovarian addition to the factors that can cause female infertility, the causes of their location and place can be divided into: br (1) infertility caused by vaginal factors: the absence of the hymen, the vaginal diaphragm, congenital absence of vagina and other congenital malformations, being able to prevent the sexual life; Yan vaginal inflammation, large numbers of white blood cells swallow sperm can lower sperm motility, shortening the time affect the survival of her pregnancy. br (2) uterine factor infertility due to: infertility by about 10% to 15%. The bending and normal uterus, cervix backwards, the cervix after intercourse soaked in semen is propitious for conception. Since the uterus after the curve backwards, so that the cervix to move up, can affect the pregnancy due to inadequate secretion of ovarian progesterone, so that endometrial secretion of the response of the poor; hypoplasia uterine and endometrial inflammation, such as endometritis, tuberculosis, submucosal uterine fibroids, etc. may affect the implantation Yunluan. br (3) infertility caused by cervical factors: It is the most important reason for infertility, infertility accounts for about 10% to 20%. The ovulation cervical opening her mouth, menstruation after the opening of 1mm diameter ranging from 3 mm, an increase in cervical mucus during ovulation, fair and transparent, the pH value of 7.0 ~ 8.2 can be and the acidity of the vagina is conducive to the activity of sperm and through. Because chronic cervicitis or low levels of estrogen, a variable viscous cervical mucus, or contains a large number of white blood cells, is not conducive to the activities of sperm and pregnancy can affect adoption. In addition, cervical polyps or cervical fibroids can block the tube of the cervix, which affects the passage of sperm, cervical stenosis can also cause infertility. br (4), tubal factor infertility: Tubal adhesions caused by inflammation of the obstruction of the fallopian tubes, preventing the egg and sperm unite Erzhi infertility. Endometriosis can also cause pelvic adhesions and tubal infertility distortions. br (5) Other factors: The system checks, there are still about 10% of men and women were at no obvious reasons for infertility. In recent years, and immunologic factors. In some women's sterile serum found to contain antisperm antibodies, these antibodies with sperm agglutination can occur, these infertile couples, such as using condoms, birth control for some time, make these antibodies disappear pregnancy. Others, such as spouses and blood type, while others believe it could be the reasons for infertility. Sex chromosome aberrations and karyotype 45XXO or 46XXP or fantasy, and sometimes the patient is normal, but hypoplasia ovarian anovulation, or amenorrhea, multiseeking treatment for infertility. br br
