Changes of semen quality in Chinese fertile men from 1985 to 2008.
- Author:
Chun-Yan HUANG
1
;
Chen-Jun YAO
;
Chun WANG
;
Jun-Kang JIANG
;
Gang CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Asian Continental Ancestry Group; China; Humans; Male; Retrospective Studies; Semen Analysis; Sperm Count; Sperm Motility
- From: National Journal of Andrology 2010;16(8):684-688
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo analyze the changes of semen quality in Chinese fertile men during the past 24 years.
METHODSWe reviewed the literature on the sperm quality of Chinese fertile males published from 1985 to 2008, collected relevant data, and analyzed the changes in semen volume, sperm density, and total sperm count by linear regression.
RESULTSThere were no significant changes either in semen volume during the period of 1985-2008 (P >0. 05) , or in sperm density and total sperm count from 1985 to 1994 (P > 0.05). However, significant decreases were observed during the latter 14 years in sperm density (from 81.5 x 10(6)/ml in 1995 to 66.7 x 10(6)/ml in 2008, with a mean annual reduction of 1.40%) and total sperm count (from 257.2 x 10(6) in 1995 to 185.9 x 10(6) in 2008, with a mean annual reduction of 2. 15%) (P < 0.05).
CONCLUSIONThe semen quality of Chinese fertile men showed no significant changes from 1985 to 1995, but evidently declined from 1995 to 2008, which may be attributed to the aggravated environmental pollution induced by heavy chemical industry.
