Menstrual irregularities occur in an estimated 14% to 25% of women of childbearing age.1
Estimates of the number of women with menstrual irregularities may differ by the cause or nature of the irregularity. For example, if a woman experiences severe cramps, she might be included in the tally of women with endometriosis rather than in the tally of women with menstrual irregularities.
- Whitaker, L., & Critchley, H. O. D. (2016). Abnormal uterine bleeding. Best Practice & Research Clinical Obstetrics & Gynaecology, 34, 54–65. Retrieved December 2, 2016, from http://www.sciencedirect.com/science/article/pii/S1521693415002266 .