Which statement is true about primary dysmenorrhea?
a. Primary dysmenorrhea is experienced by all women.
b. It is unaffected by oral contraceptives.
c. It occurs in young multiparous women.
d. It may be caused by excessive endometrial prostaglandin.
ANS: D
Some women produce excessive endometrial prostaglandin during the luteal phase of the menstrual cycle. Prostaglandin diffuses into endometrial tissue and causes uterine cramping. Primary dysmenorrhea is not experienced by all women. Oral contraceptives can be a treatment choice. It occurs in young nulliparous women.
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