The menstrual cycle is more than just a monthly occurrence—it’s a key indicator of overall health. Understanding how the cycle works, what’s normal, and when something might be off can help identify changes in your reproductive health. Each cycle involves a complex interaction of hormones that prepares the body for a potential pregnancy. But periods aren’t just about fertility; they can also highlight conditions like fibroids, endometriosis, or hormonal imbalances. This article breaks down the basics of the menstrual cycle, signs to watch for, and what happens during the transition to menopause, when periods come to an end.