Peritoneal dialysis is peritoneal dialysis or abdominal fluoroscopy. 1. Peritoneal dialysis utilizes the body’s natural semi-permeable membrane and peritoneum as the dialysis membrane. A certain formula of dialysis solution is injected into the abdominal cavity to remove residual metabolites and excess water from the body according to dialysis dispersion and ultrafiltration, so as to maintain water-electrolyte balance and achieve the therapeutic purpose. Prior to peritoneal dialysis, the doctor will first perform a small surgery in the patient’s lower abdomen and implant a flexible peritoneal dialysis catheter into the patient’s abdominal cavity. During the treatment, peritoneal dialysis fluid enters through the peritoneal dialysis catheter. 2. Abdominal fluoroscopy is a fluoroscopic examination of the abdomen using X-rays. Depending on the patient’s physical condition, excessively thick fat or lack of cooperation with the examination may affect radiation penetration and lead to some discrepancy in the results. Such patients can undergo abdominal CT examination, rather than simply do abdominal fluoroscopy. So whether or not to diagnose certain diseases through abdominal fluoroscopy, should listen to the doctor’s opinion, to find a suitable method of examination, which plays a vital role in the diagnosis of the disease.