Cyclic endometrial changes without menstruation.
D000568:Amenorrhea / Q000209:etiology*; D002584:Cervix Uteri; D003251:Constriction, Pathologic; D004717:Endometrium / Q000502:physiology*; D005260:Female; D006801:Humans; D008598:Menstruation; D014599:Uterus
AMENORRHEA/etiology and pathogenesis; CERVIX, UTERINE/stenosis; ENDOMETRIUM/physiology