In the diagnostic work-up of male factor infertility, a semen analysis shows: volume 1.8 mL, total motility 25%, progressive motility 18%, normal morphology 3% (Kruger strict criteria). This pattern is BEST described as:

• A Oligospermia alone
• B Asthenoteratozoospermia (OAT) ✓
• C Asthenospermia alone
• D Severe oligoasthenoteratozoospermia

Explanation

WHO 2021 lower reference limits are: total motility ≥42%, progressive motility ≥30%, normal morphology ≥4% (Kruger strict). This patient has reduced motility (<42% total, <30% progressive) and reduced morphology (<4%), but sperm concentration is not stated as low — making this asthenoteratozoospermia (reduced motility + morphology). Oligoasthenoteratozoospermia requires all three parameters to be below reference limits including count <16 million/mL.

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

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.