Obesity in children is defined as excess body fat that increases health risks. The prevalence of childhood obesity is increasing globally and in India. Obese children often remain obese as adults, increasing their risk of cardiovascular disease, diabetes, and other health issues. Causes of obesity include genetic factors, medical conditions, medications, lifestyle and behavioral factors like poor diet and sedentary behavior. Evaluation and management involves lifestyle changes like diet and exercise as first-line treatment, along with addressing any underlying medical conditions and using medications in some cases. Bariatric surgery may be considered for severe obesity.