Constipation is a very common and painful symptom that can be associated with many diseases. Patients often experience reduced frequency of bowel movements, lack of bowel movement, dry and hard stools, and difficulty in passing stools, and in severe cases, laxatives or enemas are needed to keep the stools open. Usually, constipation is divided into three main types: slow transmission (barium strip test helps to diagnose), outlet obstruction (anorectal manometry can clarify), and a mixture of both. Biofeedback therapy is mainly aimed at patients with non-organic outlet obstruction type constipation, which is non-invasive, safe and effective, and is a model for treating the disease from a pathophysiological perspective. The so-called biofeedback therapy is to convert some physiological and pathophysiological activities that cannot be perceived by ourselves (e.g. defecation process) into perceptible forms (e.g. cartoon images, etc.) such as sound and images through information conversion by computer, so that patients can realize their wrong behaviors and correct them as required to achieve the purpose of treating constipation. The pelvic floor muscles are exercised after biofeedback treatment, and symptoms such as straining/difficulty in defecation, feeling of incomplete defecation, and even poor urination can be significantly relieved and the effect is constant. Patients are ready to come and do the whole treatment, 30-40 minutes each time, 6-7 times for a course. Patients go home and then practice according to the correct movements to develop good bowel habits. Generally, after several courses of intermittent treatment, bowel movement can basically return to normal.