Final answer:
The most common cause of reproductive-aged anovulatory DUB is polycystic ovary syndrome (PCOS). It is diagnosed through a hormonal evaluation and can be treated with ovulation induction.
Step-by-step explanation:
The most common cause of reproductive-aged anovulatory DUB is polycystic ovary syndrome (PCOS). It is characterized by hormone imbalances that interfere with normal ovulation. To diagnose PCOS, a hormonal evaluation is typically performed. Treatment for PCOS-related anovulatory DUB usually involves ovulation induction using hormonal treatments that stimulate ovulation.