There can be minor variations in a woman’s menstrual cycles. While the average cycle lasts 28 days, it can, at times, occur after every 24 to 31 days. When a woman’s cycle unexpectedly falls outside of the usual range, she may be experiencing irregular periods. A disrupted menstrual cycle can lead to excruciatingly painful symptoms. A number of factors can be responsible for this, some of which are listed below. The reasons for irregular menstrual cycles The following are the primary causes for skipped or irregular menstrual cycles. An unhealthy meal plan The thyroid and adrenal glands are affected due to a meal plan that’s high in stimulants but lacking minerals, antioxidants, and probiotic foods. For instance, a meal plan high in sugar, hydrogenated fats, and chemical additives has been related to thyroid problems and adrenal exhaustion, which can cause cortisol to rise. This could lead to a longer cycle and anovulation. If cortisol remains high for an extended time, periods can become irregular or even less frequent. To avoid this, make sure to eat foods that are nutrient-dense and contain enough protein. Low BMI A low body mass index (BMI) of below 18 or 19 may lead to irregular periods.