Which of the following is NOT a normal parameter in standard semen analysis?

• A. Volume 2.0 mL
• B. Sperm concentration 5 million/mL
• C. Total motility 60%
• D. Normal morphology 4%

Answer: (B)

Understanding semen analysis references helps explain why this one value stands out. Standard semen analysis uses threshold values to judge normality: volume should be about 1.5–5 mL, sperm concentration should be at least 15 million per mL, total motility should be around 40% or more, and morphology (using strict Kruger criteria) should be at least 4% normal forms. In this set, a volume of 2.0 mL falls within the normal range, and total motility of 60% is well above the minimum, with morphology at 4% meeting the threshold. The issue is sperm concentration at 5 million per mL, which is markedly below the 15 million per mL cutoff. That makes the concentration the not-normal parameter.