Sperm motility and morphology as changing parameters linked to sperm count variations

Area of Science:

• Reproductive Medicine
• Andrology
• Spermatozoa Biology

Background:

• Semen analysis is crucial for assessing male reproductive health.
• Understanding variations in semen parameters over time is essential for accurate fertility diagnosis.
• Previous studies have explored factors influencing semen quality, but longitudinal data on parameter interrelationships are less common.

Purpose of the Study:

• To analyze longitudinal variations in key semen parameters over a one-year period in 177 males.
• To determine the relationships between sperm count, motility, morphology, and total motile count.
• To investigate how these parameters change across different patient classes, from azoospermic to normospermic.

Main Methods:

• Longitudinal semen analysis of 177 males over 12 months.
• Calculation of average means for total sperm count, motility, morphology, total motile count, and non-motile percentage.
• Categorization of patients into five classes based on semen analysis results (azoospermic to normospermic).

Main Results:

• A positive correlation was observed between a decreasing sperm count and reduced sperm motility.
• Total motile count showed a corresponding decrease with falling sperm counts.
• An increase in abnormal sperm morphology was associated with lower sperm counts.

Conclusions:

• Semen parameter variations over time are significant and interconnected.
• Declining sperm count is indicative of reduced sperm motility and increased morphological abnormalities.
• These findings underscore the importance of serial semen analysis for a comprehensive evaluation of male fertility.