[Seasonal variations of cellular composition of human semen (author's transl)].
Sperm samples taken fortnightly from 14 young europeans over a period of 8 months show evidence of a seasonal variation in the concentration of spermatozoa and in the frequency of abnormal sperm (teratospermy). Both factors are highest in winter and lowest in springtime. A study of 3,000 spermograms established during consultations for sterility over the last 2 years did not clearly reveal the same trends, however, a statistical analysis of the results leads to the conclusion that several hundred examinations per month would be needed to show a significant seasonal variation in such a heterogeneous sample.
D000293:Adolescent; D000328:Adult; D002452:Cell Count; D006801:Humans; D008297:Male; D012621:Seasons; D012661:Semen / Q000166:cytology*; D013094:Spermatozoa
Variations saisonnières dans la composition cellulaire du sperme humain.