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World Health DirectoryArticle Details
What triggers male and female sterility? |
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| Date Added: February 15, 2010 06:15:59 PM | |
| Author: kasrina798 | |
| Category: Directories: Pharmacy | |
Infertility (also called sterility) is the inability to get pregnant after, at least, a year of attempting. A female is not always to be blamed. In 30% of cases sterility is due to the woman. In another 30% of cases, infertility is due to male factors. The remaining cases are triggered by a mixture of male and female factors or by unidentified factors. Problems with ovulation account for most cases of infertility in women. Without ovulation, there are no eggs to be fertilized. If a woman menstruates irregularly or does not menstruate at all, she might have abnormal ovulation. Less common causes of reproduction problems in females are blocked fallopian tubes because of pelvic inflammatory disease (PID), endometriosis, or operation for an ectopic pregnancy, physical problems with the womb, uterine fibroids. A woman's ability to have a baby can be affected by a lot of factors. They are age, nerve-wracking situations, unbalanced diet, athletic training, obesity or being underweight, chain smoking, alcohol abuse and addiction to drugs, sexually transmitted diseases (STDs), health problems that impair the hormonal balance. At present more females conceive their first baby when they are in their 30s or 40s. In fact, almost 20% of Americans now have their first baby after the age of 35. Hence, age is a very common cause of fertility problems. Almost 30% of couples where the female is over 35 have conception problems. The commonest cause of male infertility is a varicocele - an abnormal enlargement of the vein in the scrotum that drains the testes. This may badly impact upon sperm production. A blockage in a man's reproductive system may bring on male infertility. Some drugs may also lead to infertility. Other causes of male sterility may include low sperm count, undescended testicles, diseases. Heavy smokers are said to have a 13-17% lower sperm count than non-smokers. Addiction to alcohol can significantly decrease the sperm count. Tight fitting clothes and elongated periods of sitting can result in a drop in sperm count through excessive heating of the testicles. Marijuana, cocaine and anabolic steroids all lower the sperm count and badly impact upon motility. At times the cause of male infertility is unknown. In these cases, there may be an underlying genetic problem. Both men and females need specialist assistance if pregnancy does not occur naturally. |
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