Abdominal obesity, known as high waist circumference or size could be a sign of some common lifestyle conditions. If your waist size exceeds the normal range, then it’s time to take it seriously as it might increase your risk of diabetes, cardiovascular diseases or even cancer.
Coronary artery disease: Your waist can land your heart in trouble. Waist size acts as a powerful predictor of the risk of coronary heart disease, especially in middle-aged and older women. The risk increases further in post menopausal women. 
Diabetes: Did you know that increased waist size can help in assessing the risk of type 2 diabetes, especially in people with low or normal weight? Although the risk is higher in women as compared to men, men with additional risk factors like smoking and alcohol were at a high risk .
Liver disease: Waist size matters more than weight when it comes to non-alcoholic fatty liver disease (NAFLD). Moreover, metabolic and cardiovascular complications associated with NAFLD like can be effectively detected by working on BMI and waist size.
Poor sexual performance: Yes, a bulging tummy can ruin your sex life. A 2016 study published in The American Journal of Medicine proved that in addition to metabolic syndrome, waist size can significantly lead to decreased sexual activity in post menopausal women.
Cancer: A 2016 study was published in the journal Cancer Research revealed that people with type 2 diabetes and high BMI (body mass index) are at an increased risk of liver cancer. According to the study, a 5 cm increase in waist circumference ups your risk of liver cancer by 8 per cent.