A small percentage of men have a blockage in their ejaculatory duct that prevents sperm from getting into their ejaculate fluid. If your vas deferens or epididymis tubes are blocked or damaged, they can prevent your sperm from getting to your partner's egg. Infection, injury, congenital defects, or a vasectomy could cause this blockage.
Varicocele
Varicocele (enlarged veins, similar to varicose veins, in the scrotum) raise the temperature in the testes, which may affect sperm production.
Possible symptoms : None. (The problem can be detected through a physical exam.)
Possible solutions: surgery to repair the varicocele
Success rates: Up to 43 percent of men impregnate their partner within a year of surgery, and up to 69 percent do so within two years.
Irregular Sperm
If you have little to no sperm, poor sperm motility (its ability to move), or abnormally shaped sperm, your sperm may not be able to fertilize your partner's eggs on its own.
Unexplained Fertility Problems
Your doctor may diagnose you with an "unexplained fertility problem" if he can't pinpoint the cause of your trouble conceiving. Some experts think environmental toxins may be contributing factors, but no direct links between fertility and these possible problems have been confirmed.
It is estimated that one in six couples face difficulties in conceiving. If you've had unprotected sex for more than 12 months (or, if you're over 35, six months) and are still not pregnant, you may begin to wonder if you are infertile.
If you decide to seek medical help, the best thing to do is see your doctor. Many infertility problems can be pinpointed and the vast majority treated.
The chart below outlines the most common causes, typical treatments and the percentages of couples who go on to become pregnant. Percentages are variable since multiple problems can exist in a couple.
Common causes of fertility Problems in women
About 10 percent of reproductive-age couples in the United States will have difficulty getting pregnant. About 30 percent of cases are due to problems in the woman, 30 percent to problems in the man, and the rest to unexplained causes or multiple factors involving both partners.
If you've had regular, unprotected sex for more than a year (or six months if you're over 35) without conceiving, see your doctor. Nearly 90 percent of couples with infertility problems can be successfully treated.
Read on to learn about the common causes of infertility, treatments, and how many couples become pregnant with treatment. Keep in mind that success rates may vary, since one couple can have multiple problems.
Endometriosis
Ovulation problems
Poor egg quality
Polycystic ovarian syndrome
Blocked fallopian tubes
Sperm allergy
Unexplained fertility problems
Combination fertility problems
There are many known causes of female and male infertility. There are also many couples with what infertility doctors call idiopathic or unexplained infertility. The reasons for infertility are many - and the exact reason can not always be identified. However, fertility treatments will usually be successful - even when the reason for infertility is not known.
the major known causes and treatments of female and male infertility.
Tubal infertility
Male infertility
Unexplained infertility
Egg quantity and quality problems
Female age and fertility
Ovulation problems and fertility
Polycystic ovaries and infertility PCOS
Previous vasectomy
Previous tubal ligation
Endometriosis and infertility
Uterine factors and fertility
Uterine polyps and fertility
Uterine fibroids and infertility
Uterine scarring and fertility
Immune problems and fertility
Ectopic pregnancy
Pelvic scarring and infertility
Smoking and fertility
Weight and fertility
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