Concentración espermática: ？Necesitamos un nuevo valor de referencia?

objectives: to evaluate the sperm count in fertile men, general population, and infertile men in different regions of the world. methods: sperm counts were recorded according to their fertility status, proven fertility, men recruited from an andrology/infertility clinic, or healthy men results: the average of sperm count in the different studies is lower in infertile men that in fertile men (p>0.001) and in the general population (p>0.001). conclusion: based on this analysis the normal sperm count is about 65 million per ml. using these reference value, only the 25% of the studies in infertile men are above this value, and the 75% studies with fertile men (>65 x 106 sperm/ml).