How Does Thyroid Function Affect Menstrual Cycles?
Thyroid function has a significant impact on the menstrual cycle. Both hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid) can cause menstrual irregularities. In hypothyroidism, women may experience heavy or irregular periods, while hyperthyroidism can lead to lighter, less frequent periods or even amenorrhea (absence of menstruation). These conditions can also affect ovulation and fertility.
