What Causes A Light Period?

Gaining Or Losing A Lot Of Weight

Your weight and body fat can affect your period and cause irregularities. Your period can become irregular if you are very underweight because your hormones are not functioning as they normally would. A low body weight can disrupt hormone production and this, in turn, may cause lighter menstrual periods. In addition, extreme fluctuations in weight can cause inconsistencies with your menstrual cycle. It's important to eat a healthy, balanced diet and avoid gaining or losing a lot of weight in a short time period. Eating disorders, such as anorexia nervosa and bulimia often lead to low body weight. This will upset the balance of hormones that control your menstrual cycle and cause irregular or light periods.