A study of the relationship between coitus and the luteinizing hormone surge

Morris, N.M.; Udry, J.R.; Underwood, L.E.; Morris, N.M; Udry, J.R; Underwood, L.E

doi:10.1016/s0015-0282(16)42492-1

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A study of the relationship between coitus and the luteinizing hormone surge

Morris, N.M.; Udry, J.R.; Underwood, L.E.

Fertility and Sterility 28(4): 440-442

1977

ISSN/ISBN: 0015-0282

PMID: 321262

DOI: 10.1016/s0015-0282(16)42492-1

Document Number: 433413

Twenty-seven wives participating in a study of sexual activity patterns had identifiable shifts in basal body temperature and midcycle surges of serum luteinizing hormone (LH). When sexual activity data were examined using the LH surge as a centering point, it was observed that the day before the LH surge had only an average probability of coitus and organism. These findings suggest that neither coitus nor orgasm often triggers ovulation in humans. This cannot be taken as evidence that coitus-induced ovulation never occurs.