Billings natural FP method: correlation of subjective signs with cervical mucus quality and ovulation

Etchepareborda, J.J.; Rivero, L.V.; Kesserü, E.

Contraception 28(5): 475-480


ISSN/ISBN: 0010-7824
PMID: 6673902
DOI: 10.1016/0010-7824(83)90078-1
Document Number: 400206
Daily self-appraisal of the degree of vulvar humidity sensation by highly motivated and trained volunteers was correlated to actual cervical mucus quality patterns and time of ovulation. Sixty-two ovulatory cycles were studied. Humidity degrees reported by the women showed a highly significant correlation with simultaneous values of cervical mucus spinnbarkeit and crystallization. On the other hand, ovulatory days were also closely related to the days reported with maximal (+++) humidity degree. In summary, the correct appraisal of vulvar humidity may provide consistent information on both cervical sperm penetrability and ovulation predictions; these in turn could complement each other in ascertaining the potentially fertile period of the cycle.

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