1-Define primary and secondary amenorrhea and identify when investigation is indicated. 2-Explain the normal hypothalamic–pituitary–ovarian–uterine axis and how disruption causes amenorrhea.
1-Define primary and secondary amenorrhea and identify when investigation is indicated.
2-Explain the normal hypothalamic–pituitary–ovarian–uterine axis and how disruption causes amenorrhea.
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This guide covers amenorrhea, detailing definitions and investigation triggers, including primary vs. secondary types and critical evaluation indicators. It explores the normal reproductive axis, tracing the signaling of GnRH, LH, and FSH, while explaining ovarian hormones and endometrial cycling with a visual diagram. Additionally, it addresses disruption patterns, mapping lesions to their origins in the hypothalamus, pituitary, ovaries, or uterus, and emphasizes a systematic evaluation...