Does elevated luteinizing hormone level before trigger mean premature luteinizing hormone surge in advanced-aged women undergoing mild ovarian stimulation?

To explore whether elevated luteinizing hormone (LH) level before trigger means premature LH surge in advanced aged women undergoing mild ovarian stimulation.To retrospectively analyze 235The dynamic change of LH level during stimulation; the proportion of an elevated LH level defined as10 IU/L on trigger day; the proportion of premature ovulation in each group.Serum LH level increased early in Group 2 and Group 3 and remained significantly higher than that in Group 1 during stimulation. In a sequence of three groups, the proportion of elevated LH levels before the trigger was 11.84, 43.8, and 37.21% (Elevated LH level before trigger does not mean premature LH surge in women more than 35 years old with POR undergoing mild ovarian stimulation with clomiphene or tamoxifen.