* Vaginal epithelium and [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|uterine endometrium]] becomes hyperaemic and congested. | * Vaginal epithelium and [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|uterine endometrium]] becomes hyperaemic and congested. |