Can Plan B One Step cause thyroid problems?

Plan B One-Step, an emergency contraceptive pill containing levonorgestrel, is not known to cause thyroid problems in the general population. While hormonal contraceptives can affect hormone levels, there is no substantial evidence linking Plan B specifically to thyroid dysfunction. However, individuals with pre-existing thyroid conditions should consult their healthcare provider before using any hormonal contraceptives. Always consult a healthcare professional for personalized advice.