Sperm's shape determines the pregnant factor too

Sperm's shape determines the pregnant factor too
Report of " medical periodical of New England " published newly, American researchers found the sperm The shape is a factor of determining fecundity too, not only the number of sperm thought in the past. Over the past 50 years, " every common pinch (1 liters) that World Health Organization adopts The seminal fluid contains 20 million sperms, among them half will be moved at least " Standard,used for for judging by male fecundity extensively. The researchers of medical college of Rochester university collect from all parts of U.S.A to 765 pregnant married couple As the research object with 696 spouses of persons who have already given birth to the child's seminal fluid. Found finally, some The man of sperm's number under World Health Organization's standard, can make madam pregnant all the same, and there are persons above the standard, because the shape of the sperm is wrong instead, it is unable to bear. " normal " originally Sperm head is should oval,getting more frank, will swing very in tail, such as The head perfect circle of fruit, simply resting on, too big or too short, the tail bends or entangles and sprains, all " abnormal " Shape. Researchers find, every common pinch of seminal fluid contains more than 48 million sperms, 63% of the meetings among them Move about, 12% of the men with normal shape, it is out of question to bear. And every common pinch of seminal fluid sperm is less than 13,500,000, ones that will be moved do not exceed 32%, the shape " beautiful " And not if you can't less than by that 9%, talk about,no Pregnant probability is very great.

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