The egg's release is triggered by a hormone in the ovaries called luteinizing hormone, which surges right before ovulation. Known as the LH surge, this hormonal activity prompts an egg to rupture ...

Day 14 Consistently high levels of estrogen cause the pituitary gland to release a massive LH surge, which triggers ovulation. The dominant follicle bursts, releasing a mature ovum that travels to ...

Day 14 Consistently high levels of estrogen cause the pituitary gland to release a massive LH surge, which triggers ovulation. The dominant follicle bursts, releasing a mature ovum that travels to ...

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During the menstrual cycle, rising levels of estradiol switch the feedback from negative to positive, leading to a surge in GnRH and subsequently LH, which is essential for ovulation[4].