A STUDY OF PLASMA PROGESTERONE, OESTRADIOL‐l7β, PROLACTIN AND LH LEVELS, AND OF THE LUTEAL PHASE APPEARANCE OF THE OVARIES IN PATIENTS WITH ENDOMETRIOSIS AND INFERTILITY

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Abstract
Summary: Thirty‐four infertile patients with regular cycles and endometriosis were studied and compared to a control group of 28 women. The endometriosis was classified as mild (n = 16), moderate (n = 9) and severe (n = 9) according to Acosta et a1 (1973). The interval between the LH peak and the onset of subsequent menstruation was shorter (P = 0.024) in patients with endometriosis than in the control group. In mild endometriosis, oestradiol‐17β levels fell on the day after the LH peak, but this was not the case in moderate and severe endometriosis. In mild, moderate and severe endometriosis the plasma progesterone concentration did not rise on the first day following the LH peak, and at laparoscopy significantly (Pin situ and that this may explain the associated infertility.