Objective To investigate the clinical characteristics of gastrointestinal amyloidosis and its endoscopic features.Methods From 2016 to January 2003,17 cases of patients with amyloidosis diagnosed by biopsy in 3 months,10 males and 7 females.mean age(63.8 ±15.9) years old.Analyze the clinical data and summarize the clinical features of the patients.Results The frequent presentations of gastrointestinal amyloidosis were gastrointestinal bleeding(hematochezia,melena,and hematemesis),anorexia,abdominal pain,abd...