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SEMEN ANALYSIS IN HUMANS | WHO NORMAL RANGES FOR SEMEN ANALYSIS | | Semen Characteristics | WHO-1987 | WHO-1992 | | Volume (ml) | > or = 2 | > or = 2 | | pH | 7.2-8.0 | 7.2-8.0 | | Sperm concentration (M/ml) | > or = 20 | > or = 20 | | Total sperm count (M/ejaculate) | > or = 40 | > or = 40 | | Morphology (% normal) | > or = 50 | > or = 30 | | Vitality (% live) | > or = 75 | > or = 75 | | WBC (M/ml) | <1.0 | <1.0 | | Immunobead test (%sperm with beads) | < or = 10 | <20 | | MAR test (%sperm with RBCs) | <10 | <10 | | Motility Within 1h of ejaculation | | | class a (%) | > or = 25 | > or = 25 | | classes a and b (%) | > or = 50 | > or = 50 | | Neutral alpha-glucosidase (mU/ejaculate) | > or = 20 | | Total zinc (µmol/ejaculate) | > or = 2.4 | | Total citric acid (µmol/ejaculate) | > or = 52 | | Total acid phosphatase (U/ejaculate) | > or = 200 | | Total Fructose (µmol/ejaculate) | > or = 13 |
| NORMAL AND PATHOLOGICAL RANGES IN SEMEN ANALYSIS | | Semen Characteristics | Normal | Borderline | Pathological | | Volume (ml) | 2.0-6.0 | 1.5-2.0 | <1.5 | | Sperm concentration (M/ml) | 20-250 | 10-20 | <10 | | Total sperm count (M/ejaculate) | >80 | 20-80 | <20 | | Motility (0.5-2 h after ejaculate) | >50 | 35-49 | <35 | | Progression at 37oC (0-4) | 3 or 4 | 2 | <2 | | Vitality (% live) | > or = 75 | 50-74 | <50 | | Morphology (/100sperm) | | | | | Head defects | <35 | 35-59 | >60 | | Midpiece defects | < or = 20 | 21-25 | >25 | | Tail defects | < or = 20 | 21-25 | >25 | |
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