Urology Book

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Semen AnalysisAka: Sperm Analysis, Sperm Count

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  1. Sample Collection
    1. Man avoids masturbation and intercourse for 48 hours
    2. Sample delivered within 2 hours of ejaculation
      1. Keep sample cool in refrigerator
      2. Some labs require sample within 45 minutes
    3. Repeat abnormal samples in 2 months at special lab
  2. Normal Samples
    1. Volume: 2 ml or higher
    2. pH: 7.2 or higher
    3. Sperm concentration: >20 million per ml
    4. Total sperm number: >40 mIllion per ejaculate
    5. Initial sperm motility: >50%
    6. Normal sperm morphology: >14% strictly normal
    7. White Blood Cells <1 Million per ml
  3. Interpretation: Findings predictive of fertility
    1. Sperm count (concentration): >48 million per ml
    2. Initial sperm motility: >63%
    3. Normal sperm morphology: >12%
  4. Interpretation: Findings suggestive of Infertility
    1. Sperm count (concentration): <13.5 million per ml
    2. Initial sperm motility: <32%
    3. Normal sperm morphology: <9%
  5. References
    1. Guzick (2001) N Engl J Med 345:1388

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