Normal values for body fat percentage in adults are generally between 20%-25% for women and 15%-18% for men. In the case of athletes, there may be some variation in body fat percentage. In clinical terms if the body fat percentage is too high, it suggests a possible obesity condition. Obesity is associated with insufficient exercise or poor dietary habits. In addition, in some endocrine system diseases, such as aldosteronism and other conditions, there may be obesity. If the body fat percentage is too high, it will also have some association with the incidence of hypertension, hyperlipidemia, and coronary heart disease. A low body fat percentage usually indicates that there may be malnutrition or poor digestion and absorption in the digestive tract. It is important to avoid the effects of poor diet and short periods of rest before the body fat percentage test. Body fat percentage is the ratio of the weight of body fat to the total weight of the body, and it reflects the amount of fat in the body.