Childhood obesity is a serious health condition where a child has excess body fat that can negatively affect their health. It is typically measured using the Body Mass Index (BMI), which compares a child's weight to their height. Factors contributing to childhood obesity include poor diet, lack of physical activity, and genetic influences. This condition can lead to various health problems, such as diabetes, heart disease, and low self-esteem. Preventing childhood obesity involves promoting healthy eating habits, encouraging regular physical activity, and educating families about nutrition. Addressing this issue is essential for ensuring a healthier future for children.