Weight changes in women during the menstrual cycle are related to natural hormonal fluctuations that affect appetite and water retention in the body. Increased appetite and swelling often occur before menstruation, which can lead to a temporary gain of several kilos. Factors such as ambient temperature also affect these processes, and weight fluctuations usually subside once menstruation begins. In some cases, sudden and persistent changes may require consultation with a specialist. It is possible to alleviate these symptoms with the right diet, hydration and physical activity.