Sperm morphology in fertile men and its age related variation

Andrologia. Mar-Apr 1988;20(2):121-8. doi: 10.1111/j.1439-0272.1988.tb00672.x.


The different kinds of abnormalities of spermatozoa and their age related variations are studied in a population of 214 fertile men. Coiled tails (7%), bent tails (5.2%), thin heads (2.6%), microcephalic (2.6%), cytoplasmic droplets (2.5%), irregular heads (2%), macrocephalic (0.9%), duplicated heads (0.7%) and duplicated tails (0.5%) are found in this order. Age is positively correlated with the percentage of microcephalic, macrocephalic and duplicate heads and coiled tails and negatively correlated with the percentage of no tail spermatozoa: these age-related variations are involved in the 90th percentile.

MeSH terms

  • Adult
  • Age Factors
  • Fertility*
  • Humans
  • Male
  • Middle Aged
  • Reference Values
  • Spermatozoa / cytology*