www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

 
  | Home | News| Living in China| MMS | SMS | About us | Contact us|
   
 Language Tips > 2004
DEVELOPMENT REPORT - Infertility in the Developing World
By Jill Moss


This is Bob Doughty with the VOA Special English Development Report.

A man and a woman are considered infertile if they cannot produce a pregnancy after twelve months of trying. For centuries, the lack of ability to have children was blamed only on women. Scientists now know that men, too, can be infertile.

The organization PATH says infertility affects an estimated sixty-million to eighty-million people. It says the great majority live in developing countries. PATH is the Program for Appropriate Technology in Health. This non-profit group is in Seattle, Washington.

There are many different causes of infertility. Some are genetic. Others involve physical problems or injuries. Still others are environmental, like pesticides and other chemicals. Experts say diet and the use of alcohol and drugs can also affect fertility.

Some of these causes are preventable. So are others, such as infections spread through sex. Dirty conditions during childbirth can also cause infections that make women infertile. So can unsafe ways to end unwanted pregnancies. And so can the tradition in some cultures of cutting the female sex organs.

In industrial countries, the best-known current treatment for infertility is a process called in vitro fertilization. This involves joining an egg with sperm in a laboratory. Once fertilized, the egg is placed in the woman to develop into a fetus. Treatments can also involve the use of fertility drugs to increase the production of eggs.

But experts say cultural and religious beliefs may prevent people from seeking modern treatments. In Italy, for example, a new law took effect this month. The Medically Assisted Reproduction Law restricts or bans the use of many kinds of technologies. In other societies, people often blame evil spirits when a couple cannot have children. So people seek traditional treatments.

In any case, technologies for assisted reproduction cost thousands of dollars. So public health systems usually do not offer them. Many experts say public health systems should do more to educate people about preventable causes of infertility. These include sexually transmitted diseases.

The experts also say doctors should require an examination of both the man and the woman when a couple is infertile. The group PATH says men are the cause, or part of the cause, of infertility in more than half of couples.

This VOA Special English Development Report was written by Jill Moss. This is Bob Doughty.

 
Go to Other Sections
Story Tools
 
Copyright by chinadaily.com.cn. All rights reserved

版權聲明:未經中國日報網站許可,任何人不得復制本欄目內容。如需轉載請與本網站聯系。
None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.
 

 

主站蜘蛛池模板: 欧美精品亚洲一区二区在线播放 | 美国第一毛片 | 中国黄色一级大片 | 999久久久精品视频在线观看 | 免费看毛片网 | 一级aaaaaa毛片免费同男同女 | 国产亚洲欧美ai在线看片 | 91av久久| 另类zoofilia杂交videos | 亚洲精品成人久久 | 久久免费国产精品一区二区 | 亚洲三级在线观看 | 色综合夜夜嗨亚洲一二区 | 国产一级一级 | 日韩激情中文字幕一区二区 | 玖草视频在线 | a色在线| 欧美成a | 99久久精品国产9999高清 | 欧美一级特黄aa大片 | 国产精品久久久久久久毛片 | 国产一区二区三区影院 | 丝袜一级片 | 亚洲欧美日韩精品香蕉 | 国产男女猛烈无遮档免费视频网站 | 在线视频久久 | 亚洲一区 欧美 | 日韩亚洲欧美在线 | 欧美亚洲日本视频 | 成人做爰视频www在线观看 | 国产a国产 | 国产99视频精品草莓免视看 | 日韩一级a毛片欧美一级 | 欧美14videosex性欧美成人 | 成人久久18免费网站入口 | 亚洲第一成人天堂第一 | 玖草资源在线 | 日韩欧美视频在线播放 | 国产成人精品一区二区三区 | 欧美亚洲日本国产 | 中文字幕亚洲国产 |