A girl’s appetite may be due to physiological factors or because of pathological factors, such as diabetes, hyperthyroidism and other diseases. 1. Physiological factors: the general girls appetite may be due to normal physiological reasons, such as hunger, mood swings, exercise and other factors, at the same time, if the girl is in the period of pregnancy, appetite is also a normal phenomenon. 2. Diabetes: If a girl suffers from diabetes, her body may consume too much glucose, protein and other nutrients, so eating a large amount of food and a strong appetite is also a common symptom. 3. Hyperthyroidism: Usually when a girl has hyperthyroidism, her body produces more heat and consumes calories too quickly, which results in a big increase in appetite. In addition, can not be ignored is that for pathological factors lead to the problem of exuberant appetite, should be timely medical treatment, to prevent damage to the body.