A 1992 World Health Organization report described normal human semen as acquiring a volume of two mL or bigger, pH of 7.2 to 8., sperm focus of 20×106 spermatozoa/mL or extra, sperm rely of 40×106 spermatozoa per ejaculate or far more, and motility of 50% or additional with forward development (types a and b) of 25% or a lot more with rapid progression (group a) inside of 60 minutes of ejaculation. McKinley Health Center (2 April 2008).