Yes, Yaz can help regulate irregular periods for many women by providing a steady, controlled dose of hormones that suppresses ovulation and stabilizes the uterine lining. This hormonal regulation often leads to more predictable menstrual cycles, lighter bleeding, and reduced cramping over time. In the first few months, some women may experience spotting or breakthrough bleeding as the body adjusts, but with continued use, cycle regularity typically improves. Yaz is commonly prescribed for menstrual irregularity related to hormonal imbalance, as well as for contraception and PMDD management.