-transparent.png){kind=logo}
OBJECTIVE Based on the premise that various human disease processes manifest differently depending on geography, we set out to determine whether sperm counts vary from different nations and different regions within the United States. METHODS We reviewed the literature of all significant population-based studies that evaluated sperm counts from fertile or presumably fertile men from 1930 to the present. RESULTS We found that sperm counts did, in fact, vary greatly. Throughout the United States, average sperm counts ranged from a low of 48 million/cc in lowa to a high of 134 million/cc in New York, with multiple values in-between from Texas, Minnesota, Washington State, and California. Internationally, average sperm counts ranged from a low of 52.9 million/cc in Thailand to a high of 102.9 million/cc in France. CONCLUSIONS We conclude that sperm counts are subject to a wide range of variation among geographic locations.
H Fisch, and
E F Ikeguchi, and
E T Goluboff
December 2021,
Fertility and sterility,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
May 2008,
The Urologic clinics of North America,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
March 1998,
Trends in ecology & evolution,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
February 1996,
BMJ (Clinical research ed.),
H Fisch, and
E F Ikeguchi, and
E T Goluboff
September 1995,
Lancet (London, England),
H Fisch, and
E F Ikeguchi, and
E T Goluboff
January 1978,
Andrologia,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
May 1996,
Fertility and sterility,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
April 1983,
Fertility and sterility,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
January 2009,
CA: a cancer journal for clinicians,
H Fisch, and
E F Ikeguchi, and
E T Goluboff
February 2015,
Scientific reports,
