Obesity caused by constipation can be quickly reduced by the following methods: First, improving constipation and increasing food intake rich in dietary fiber are conducive to relieving constipation, increasing stomach satiety, delaying hunger and alleviating hunger symptoms. At the same time, increasing food rich in dietary fiber can improve constipation of obese people, regulate intestinal flora, and be beneficial to the management of blood sugar and weight. Such people suggest improving the diet structure first, including increasing exercise, drinking more water, improving constipation, defecating and losing weight. At the same time, on this basis, we can know whether there is obesity caused by hormone disorder and clarify the causes of obesity. According to the cause of disease, we can give corresponding treatment, so as to achieve the purpose of losing weight. For example, people with hypothyroidism and people with hypercortisolism will have different degrees of constipation and other symptoms.