WHO 2021 semen analysis reference values: which of the following correctly states the lower reference limit for TOTAL motility (progressive + non-progressive)?

• A 40% total motility
• B 50% total motility
• C 32% progressive motility
• D 42% total motility ✓

Explanation

WHO 2021 semen analysis reference values (5th edition updated 2021): total motility (progressive + non-progressive) lower reference limit = 42%; progressive motility lower reference limit = 30%; normal morphology (Kruger strict) = 4%; sperm concentration = 16 million/mL; total sperm number = 39 million per ejaculate. The 2021 update revised these thresholds slightly upward from the 2010 5th edition values. Total motility of 42% replaces the previous 40% threshold.

Reference: Shaw's Textbook of Gynaecology, 17th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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