What are the causes of Infertility?
What are the causes of Infertility?
What are the causes of Infertility?
What are the causes of Infertility?
Out of every 100 cases of infertility, about 30 to 40 involve sperm inadequacies or gonadal deficiencies in the male partner; 20 to 30 are caused by ovulatory or hormonal deficiencies in the female; 15 to 30 involve disorders or defects in the female's fallopian tubes; 10 involve a vaginal or cervical environment that is chemically hostile to sperm; and 10 are caused by unknown factors.
(i) Failure to ovulate, or produce an ovum (egg), is a common cause of female infertility and usually results from hormonal imbalancesparticularly the stimulation or suppression of the ovaries by other glands such as the pituitary, thyroid, or adrenals. The result can be an inadequate production of female hormones, and a consequent disruption of normal ovulation.
If the primary hormonal deficit is corrected through replacement therapy, the woman may resume or begin normal ovulation and may thus become fertile. Some of the therapies that are easy to do and while at home is documented in the Pregnancy Miracle by Lisa Olson.
(ii) Blockages of or obstructions within the fallopian tubes the two passages within which an ovum is fertilized by a spermare also a common cause of infertility in the female. The tubes may become blocked owing to endometriosis or inflammations stemming from gonorrhea or other infections.
(iii) The female's cervical environment is also a major cause of infertility; the mucus and other fluids secreted there may be inadequate for sperm transport or may even be lethal to sperm because of hormonal abnormalities or unbalanced acid-alkaline ratios.
(iv) Male factors are implicated in as many as 40 percent of all infertilities. Male infertility usually rests on impotence or on defects in the male's sperm, specifically their concentration, shape, motility (ability to swim), and ability to penetrate the ovum.
An infertile male may have too few sperm (a sperm count of less than 20 million per millilitre is usually inadequate for fertilization), or he may have too high a proportion of abnormal or defective sperm. Sperm quality is chiefly influenced by temperature; varicose veins in the scrotal sac, tight underwear, or other abnormal sources of heat or constriction can raise the temperature of the scrotum and thus damage sperm quality.
Male infertility may also be caused by obstructions in or an absence of the ducts (usually the epididymis) through which the sperm cells must pass on their trip from the testicles to the urethra during ejaculation.
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