久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

   

Strict screening sparks sperm shortage

By Miao Xiaojuan (China Daily)
Updated: 2007-09-11 07:23

SHANGHAI: The door of hope for many infertile couples in Shanghai has been temporarily shut - and won't reopen until 2009.

Bookings for in-vitro fertilization, or IVF - a common method of artificial insemination - are full, according to Renji Hospital-affiliated Shanghai Sperm Bank, the city's only such facility.

More than 500 couples have registered for treatment at the facility but there is just not enough donated sperm for newcomers.

"We won't accept new patients until 2009 as we don't have sufficient supply of high-quality sperm to meet demand," said an employee surnamed Ye at Renji Hospital.

A major reason for the short supply is the sperm bank's tight screening standards. As a result, only 700 of the 5,000 volunteers who came forward to donate sperm since the sperm bank was established in 2003 have passed the screening process, which involves 18 medical tests. Each qualified donor has to visit the sperm bank 10 times to complete the process.

"Over 90 percent of the volunteers are university students," Li Zheng, director of the sperm bank, said.

"We have particularly strict standards for sperm donation. For instance, the qualifying sperm count is set at 60 million/ml, which is higher than the average count of 40 million/ml," Li said.

The donor must, of course, be healthy and free from any form of infectious disease at the time of donation.

"Our experience showed that about 10 percent of the volunteers had some diseases, including abnormal incretion or inflammation, and 1 to 2 percent of them were found with more serious health problems," said Li.

Li said the bad quality of the sperm is mainly due to unhealthy lifestyles and emotional stress.

"People now are eating too much and exercising less, and they have lots of bad habits, such as smoking, drinking and staying up late."

The bank has a reserve of around 10,000 doses, and two doses are needed for each therapy. A small part of the doses are sent to other hospitals in neighboring cities.

About 10 percent of the city's 3 million couples of childbearing age are infertile, 30 to 50 percent due to male infertility, Li said. About 10 percent of those infertile couples will need donated sperm in IVF treatment.



Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    日本三级免费观看| 欧美成人乱码一二三四区免费| 五月天丁香花婷婷| 91亚洲免费视频| 色婷婷成人在线| 狠狠躁狠狠躁视频专区| 亚洲精品乱码久久久久久自慰| 欧美日韩性生活片| 成人免费视频91| 香港三级韩国三级日本三级| 成年人网站av| 一级黄色高清视频| 日韩欧美视频网站| 天堂v在线视频| 9色porny| 99999精品视频| 国产又粗又大又爽的视频| 午夜啪啪福利视频| 欧美又粗又长又爽做受| 亚洲一区二区图片| 色婷婷成人在线| 黄色a级片免费| 日本a级片在线播放| 男人揉女人奶房视频60分| 国产又猛又黄的视频| www.浪潮av.com| www.69av| 日韩人妻精品一区二区三区| 国产3p在线播放| 99视频在线免费| 好吊色这里只有精品| 久久国产激情视频| 亚洲 激情 在线| 国产精品97在线| 国产主播在线看| 久久国产亚洲精品无码| 黄色一级视频在线播放| 狠狠干狠狠操视频| 欧美黑人又粗又大又爽免费| 欧美在线观看www| 欧美深夜福利视频| 丁香花在线影院观看在线播放| 日韩一级片一区二区| 路边理发店露脸熟妇泻火| 黄色免费高清视频| 香蕉视频在线网址| 亚洲 欧洲 日韩| 中文字幕黄色大片| 久久国产这里只有精品| 黄色a级三级三级三级| 99re6在线观看| 欧美一级免费在线| 黄色a级在线观看| 亚洲小说欧美另类激情| 9l视频自拍9l视频自拍| 成人毛片100部免费看| 日本阿v视频在线观看| av在线观看地址| 成人中文字幕在线播放| avav在线看| 污污网站免费观看| 三级黄色片播放| 国产成人亚洲综合无码| 精品少妇在线视频| 女人和拘做爰正片视频| 999香蕉视频| 国产无色aaa| 少妇熟女一区二区| 日本熟妇人妻xxxx| 欧美日韩在线不卡视频| 手机看片福利盒子久久| 777久久精品一区二区三区无码| 乱子伦一区二区| 国产精品一色哟哟| av片中文字幕| 亚洲美女爱爱视频| 18视频在线观看娇喘| 欧美极品欧美精品欧美| 丁香婷婷激情网| 亚洲 国产 图片| 男人添女荫道口喷水视频| 日韩欧美视频网站| 亚洲精品久久久久久宅男| 欧美一级免费在线观看| 国产二区视频在线| 色婷婷狠狠18| 国产一区二区三区在线免费| 久久免费一级片| 3d动漫一区二区三区| 亚洲这里只有精品| www.在线观看av| 日韩欧美在线免费观看视频| 麻豆md0077饥渴少妇| 浮妇高潮喷白浆视频| 一起操在线视频| 欧洲精品一区二区三区久久| 美女在线视频一区二区| 黄网站色视频免费观看| 啊啊啊国产视频| 国产青草视频在线观看| 四季av一区二区| 97干在线视频| 日韩欧美亚洲另类| 成年人午夜视频在线观看 | 四虎永久在线精品无码视频| 午夜啪啪小视频| 久久久久久久久久久视频| 中文字幕国产高清| 日韩av资源在线| 亚洲啊啊啊啊啊| 国产一区二区在线免费播放| 日韩欧美精品免费| 中文字幕 日韩 欧美| heyzo国产| 成人午夜免费剧场| 9l视频白拍9色9l视频| 精品这里只有精品| 影音先锋成人资源网站| 日本人视频jizz页码69| 亚洲午夜无码av毛片久久| 在线观看三级网站| 亚洲一级片免费| 成人毛片视频网站| 99亚洲国产精品| 欧美美女性视频| 欧美亚洲另类色图| 欧美极品少妇无套实战| 99视频在线观看视频| 无码内射中文字幕岛国片| 国产精品50p| 国产 日韩 欧美在线| 欧美aaa在线观看| www欧美激情| 日本精品一区二区三区四区| 成人在线观看你懂的| 992tv成人免费观看| 激情黄色小视频| 91极品尤物在线播放国产| 国产精品秘入口18禁麻豆免会员| 久久久久久久久影视| 91丝袜超薄交口足| 日韩成人精品视频在线观看| av网站在线不卡| 99热手机在线| 久久久精品三级| 熟妇人妻无乱码中文字幕真矢织江| 成人毛片视频网站| 成人网站免费观看入口| 日韩精品久久一区二区| 免费成人深夜夜行网站视频| 天天干天天操天天玩| 天天爽天天爽夜夜爽| 中文字幕第21页| 牛夜精品久久久久久久| 黄色成人免费看| 久久婷五月综合| 污视频网址在线观看| 性生活免费在线观看| 91日韩视频在线观看| 9l视频白拍9色9l视频| 日韩欧美国产片| 欧美一级特黄aaa| 欧美 日韩 国产 在线观看| 欧美日韩在线免费观看视频| 一本色道久久88亚洲精品综合| 特色特色大片在线| 久久人妻无码一区二区| 国产欧美123| 亚洲熟妇无码另类久久久| 免费在线a视频| 日韩欧美在线免费观看视频| 欧美特级aaa| 在线成人免费av| 日本黄色片一级片| 免费一级特黄特色毛片久久看| 99精品人妻少妇一区二区| 男人天堂999| 亚洲娇小娇小娇小| 熟女熟妇伦久久影院毛片一区二区| 91xxx视频| 玩弄中年熟妇正在播放| 88av.com| 捷克做爰xxxⅹ性视频| 久久久久久久香蕉| 国产亚洲综合视频| 色噜噜狠狠永久免费| 91免费视频黄| www.浪潮av.com| 女同激情久久av久久| 国产高清精品软男同| 久久久久久免费看| 亚洲人辣妹窥探嘘嘘| 樱花草www在线| 国产日韩av网站| 亚洲国产高清av| 日本成人在线不卡| 午夜精品久久久久久久无码| 在线免费观看视频黄| 玖玖精品在线视频| aa免费在线观看|