To a certain extent, constipation can affect weight loss, because constipated patients are not able to discharge the body, weight loss generally eat laxative food, such as fruit or food with high fiber content, these foods can supplement the body’s basic nutrition, and can promote defecation. But the patient is not able to defecate because of constipation, the food residue in the stool will be reabsorbed by the colon over and over again, which is not good for weight loss patients, patients can try to use drugs to treat and relieve the symptoms of constipation under the guidance of a doctor.