What term describes irregular, excessive bleeding between expected menstrual cycles?

The term that describes irregular, excessive bleeding between expected menstrual cycles is menometrorrhagia. This condition is characterized by prolonged or heavy bleeding that occurs at irregular intervals, which means it can involve both increased frequency of menses and atypical bleeding patterns.

Menometrorrhagia often indicates an underlying issue that may require further evaluation, such as hormonal imbalances, structural abnormalities (like fibroids or polyps), or other reproductive system disorders. Understanding this term is crucial for healthcare professionals who need to assess and manage patients presenting with abnormal uterine bleeding.

Other options like menorrhagia refer specifically to heavy menstrual bleeding during the expected menstrual periods, oligomenorrhea indicates infrequent menstrual cycles, and polymenorrhagia describes very frequent menstrual cycles. These terms do not encompass the irregular and intermenstrual nature of the bleeding described in the correct answer.