Obesity is related to an excessive accumulation of fat in the body, or abnormal distribution of fat, leading to weight gain. The causes include environmental factors, genetic factors, and other elements interacting to trigger this metabolic disease. Nowadays, dietary patterns have resulted in an increasing population of overweight and obese individuals. Therefore, it is crucial to understand the causes of obesity. If it is a case of simple obesity, it can be managed through diet and exercise. If it is pathological obesity, such as Cushing's syndrome, this type of obesity primarily causes abdominal obesity, thin limbs, abdominal purple streaks, and may also include increased facial acne. In such cases, medical or even surgical interventions might be necessary.