Why would after having gastric sleeve surgery a menstrual period?

After gastric sleeve surgery, hormonal changes and significant weight loss can impact menstrual cycles. The body undergoes stress and adjustments that may temporarily disrupt hormonal balance, which can lead to irregular periods. Additionally, changes in body fat percentage and insulin sensitivity may also influence the menstrual cycle. It's important for individuals to monitor their reproductive health and consult with a healthcare provider if they experience significant changes.