Kathmandu. Menstruation is a normal process for women. It is natural to feel concerned when there are sudden changes in the cycle. Sometimes, a period may occur twice in a single month. While this might seem alarming at first, it is not always a sign of a serious medical condition. However, if this issue persists, it is not always wise to ignore it. Our body often provides signals for every change, and it is important for us to understand them.Is this condition normal?Generally, a menstrual cycle is considered to be 28 days. However, a cycle between 21 to 35 days is also...