Morphology
Plain-English guide for patients and families.
Teratospermia means a high proportion of sperm have abnormal shape under strict (Kruger-style) criteria. It correlates imperfectly with fertility; ICSI bypasses natural selection at the zona level. PICSI or IMSI may be discussed in some labs.
Context
One bad report does not define permanent status — repeat testing and full clinical review matter.
AI Information
EducationalSperm morphology assessment evaluates the shape and structure of sperm under strict Kruger criteria. Normal morphology of ≥4% is considered the WHO 2021 threshold. While alarming to see "96% abnormal," this is actually expected — human sperm naturally have a high proportion of abnormal forms. Morphology is the most subjective semen parameter and should not be interpreted in isolation.
Key Points
- Strict (Kruger) criteria classify any borderline form as abnormal — only "perfect" sperm are counted as normal.
- WHO 2021 lower reference limit is ≥4% normal forms — this means 96% abnormal is technically within reference.
- Isolated teratospermia (low morphology with normal count and motility) has debatable clinical significance.
- ICSI bypasses the natural selection process at the zona pellucida, making morphology less critical.
- IMSI (high-magnification sperm selection) and PICSI (hyaluronic acid binding) are adjuncts studied for severe morphology defects.
Who Should Know This?
Men with abnormal morphology on semen analysis, couples confused by "low normal form" reports, and those considering advanced sperm selection techniques.
Clinical Context in Pakistan
Sperm morphology is assessed using strict Kruger criteria at IVF Experts Lahore. Dr. Adnan Jabbar interprets morphology within the full clinical context — a single parameter does not dictate treatment decisions.
Important Disclaimer
This AI-generated summary is for educational purposes only and should not replace professional medical advice. Always consult with Dr. Adnan Jabbar or your fertility specialist for personalised clinical guidance tailored to your specific situation.
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