Vital Test

The presence of a large proportion of viable but immotile sperm may indicate defects in the structure of flagella. Along with necrozoospermia – the presence of only dead sperm in a semen sample – it is a major cause of male infertility.

In the case of poor sperm motility, it is necessary to determine the ratio of viable and dead sperm as the number of dead cells should not outnumber immotile sperm. The test distinguishes between dead and viable sperm by identifying those with an intact cell membrane. It is indicated for patients with progressive sperm motility below 40%.

Vital Test allows:

  • immediate determination of sperm viability
  • assessment of sperm membrane integrity
  • assessment of immotile sperm function


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