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הוסרו 115 בתים ,  18:03, 21 ביוני 2014
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אבחון [עריכה]==אבחנה==האבחנה של oligozoospermia מבוססת על ספירה נמוכה אחד בבדיקת [[ספירת זרע שבוצע בשתי הזדמנויות]] ב[[בדיקת זרע]] אשר בוצעה פעמיים לפחות. לריכוזי זרע עשורים רבים ריכוז של פחות מ -20 מיליון תאי זרע / מיליליטר נחשבו נמוך או oligospermic, למיליליטר נחשב לנמוך למשך עשורים רבים אך לאחרונה, עם זאת, ארגון הבריאות העולמי העריך מחדש קריטריוני זרע והקים נקודת ייחוס נמוכה יותר, וקבע כי פחות מ15 מ-15 מיליון זרע / מיליליטר, עולה בקנה אחד עם למיליליטר מהווים אחוזון ה -5 לפורה גברים. [3] ריכוזי זרע להשתנות וOligospermia עשוי להיות זמני או קבוע.
מקורות בדרך כלל לסווג Oligospermia ב3 כיתות: [4]
קשים: פחות מ -5 מיליון זרעונים ריכוזים / מיליליטר
האבחנה של oligozoospermia מחייבת לעבוד למעלה באמצעות ניתוח זרע (הרשום בפוריות גבר).
 
Diagnosis[edit]
The diagnosis of oligozoospermia is based on one low count in a semen analysis performed on two occasions. For many decades sperm concentrations of less than 20 million sperm/ml were considered low or oligospermic, recently, however, the WHO reassessed sperm criteria and established a lower reference point, less than 15 million sperm/ml, consistent with the 5th percentile for fertile men.[3] Sperm concentrations fluctuate and oligospermia may be temporary or permanent.
Sources usually classify oligospermia in 3 classes:[4]
Mild: concentrations 10 million - 20 million sperm/ml
Moderate: concentrations 5 million - 10 million sperm/ml
Severe: concentrations less than 5 million sperm/ml
The diagnosis of oligozoospermia requires a work-up via semen analysis (listed in Male infertility).
Causes[edit]
Further information: Semen quality
There are many causes for oligospermia including:[5]
Pre-testicular causes[edit]
Pre-testicular factors refer to conditions that impede adequate support of the testes and include situations of poor hormonal support and poor general health including:
Hypogonadism due to various causes
Drugs, alcohol, smoking
Strenuous riding (bicycle riding,[6] horseback riding)
Medications, including androgens.
 
סיבות [עריכה]
6 References
7 External links
Diagnosis[edit]The diagnosis of oligozoospermia is based on one low count in a semen analysis performed on two occasions. For many decades sperm concentrations of less than 20 million sperm/ml were considered low or oligospermic, recently, however, the WHO reassessed sperm criteria and established a lower reference point, less than 15 million sperm/ml, consistent with the 5th percentile for fertile men.[3] Sperm concentrations fluctuate and oligospermia may be temporary or permanent.Sources usually classify oligospermia in 3 classes:[4]Mild: concentrations 10 million - 20 million sperm/mlModerate: concentrations 5 million - 10 million sperm/mlSevere: concentrations less than 5 million sperm/mlThe diagnosis of oligozoospermia requires a work-up via semen analysis (listed in Male infertility).Causes[edit]Further information: Semen qualityThere are many causes for oligospermia including:[5]Pre-testicular causes[edit]Pre-testicular factors refer to conditions that impede adequate support of the testes and include situations of poor hormonal support and poor general health including:Hypogonadism due to various causesDrugs, alcohol, smokingStrenuous riding (bicycle riding,[6] horseback riding)Medications, including androgens.
Testicular factors[edit]
Testicular factors refer to conditions where the testes produces semen of poor quality despite adequate hormonal support and include: