Introduction to Menstrual Abnormalities By JoAnn V Pinkerton, MD, University of Virginia Health System Reviewed / Revised Jan 2023 View Patient Education Some common menstrual abnormalities include Amenorrhea Abnormal uterine bleeding (eg, due to ovulatory dysfunction) Dysmenorrhea Premenstrual syndrome Irregular or absent menses and nonmenstrual vaginal bleeding have many causes.