According to WHO standard methodology for semen analysis (WHO Criteria, 2010), semen analysis is conducted to identify sperm count, the movement of sperm (sperm motility) and the shape of sperm (sperm morphology). Testing involves:
- Macroscopic examination: The semen sample is first evaluated by simple inspection to determine general appearance, color, turbidity, dissolution, volume, viscosity and acidity.
- Microscopic examination: Under the inspection of microscope, semen sample is further investigated for a sperm count, sperm movement rate, sperm viability or rate of alive sperms, percentage of sperms with normal shape, white blood cells and red blood cells.
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