Menstrual disorders Flashcards
What effect does oestrogen have on LH?
At low conc = inhibits LH
At high conc = stiulates LH
A spike in which hormone occurs at ovulation?
LH
What hormones does the degenerating corpus luteum secrete?
Oestrogen
Inhibin
Progesterone
What does inhibin do?
Inhibit FSH
What does progesterone do?
Inhibits GnRH
Stimulates endometrial growth
What happens when the corpus luteum completely degenerates?
Decreased progesterone
Endometrium shes
Increase in GnRH
How is ammenorrhoea defined?
Abscence of menstruation for > 6 months
How is oligomennorhoea defined?
Menses at intervals of >35 days
What is the most concerning cause of postmenopausal bleeding?
Endometrial cancer
What causes ovulatory dysfunctional uterine bleeding?
Inadequate progesterone production
How is dysfunctional uterine bleeding treated?
Progestrogens
COC
Danazol