Salivary progesterone measurements reveal corpus luteum defects which respond poorly to hormonal treatments in operated mild and moderate endometriosis.

Thirty-five women who had been operated on for mild or moderate endometriosis were evaluated through 40 menstrual cycles by daily measurements of salivary progesterone concentrations. As controls, 17 women with normal ovulatory cycles and no endometriosis were studied. In the endometriosis group, 22 cycles were unstimulated, seven were stimulated by clomiphene citrate and 11 with clomiphene citrate, human menopausal gonadotrophin and human chorionic gonadotrophin. A variety of aberrations in profiles of salivary progesterone secretion was detected in all the groups of endometriosis patients and the frequency of normal cycles was significantly lower than in controls (14-18% versus 82%, P less than 0.01). The response to the treatments varied greatly within the groups. In conclusion, the present data demonstrate that patients with endometriosis have a variety of defects in the menstrual pattern of salivary progesterone secretion and that their corpus luteum function responds poorly to stimulatory treatments.