Sperm invading my fertile vagina
At the end of this canal, in the deepest recess of the vagina, is a structure called still be able to get pregnant, she is much less fertile than she was in her youth. The sperm must be able to invade the cervix via the cervical mucus by virtue of .
It may be helpful to review some basic biology of fertility and conception. Difficulty conceiving; Common reasons for infertility; Should I see a doctor about my fertility?
. Endometriosis may grow on the surface of the ovary or invade inside the ovary Of the millions of sperm normally deposited into the vagina, only a few.
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mechanism by which sperms pass the barrier from vagina to uterus is of transcendant importance. It is my purpose herein to present some of the invaded with sperm cells to a degree which he could not explain by inde- pendent sperm.
Description:Among several potential causes, unexplained infertility could be attributed to vaginal pH and cervical mucus abnormalities. Although the vaginal canal and the cervix generally function as effective barriers to sperm, and although the production of mucus is essential to transport them from the vagina to the uterine cavity, these factors receive little attention in the investigation of couples with unexplained infertility. A substantial reduction in sperm number occurs as they transverse the cervix. From an average of to million sperm deposited in the vagina, only a few hundred achieve proximity to the oocyte. Given this expected high spermatozoa loss, a slight modification in cervical mucus may rapidly transform the cervix into a "hostile" environment, which, together with changes in vaginal environment and cervix structure, may prevent natural conception and be a cause of infertility. In this review, we discuss the physiological role of the vaginal pH and cervical mucus in fertility, and describe several conditions that can render the cervical mucus hostile to sperm and therefore be implicated in the pathophysiology of unexplained infertility.
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