Plasma cell infiltration on colonoscopy suggests the presence of intestinal inflammation. Intestinal inflammation can be divided into specific enteritis and non-specific enteritis. 1. Specific enteritis: such as bacterial and viral infections can lead to enteritis, enteroscopy can also see intestinal mucosal edema, erosion and other changes, most need to give specific antibiotics, antiviral drugs treatment. 2. Non-specific enteritis: related to genetic, environmental, dietary, immune factors, such as ulcerative colitis, Crohn’s disease. Enteroscopy can see mucosal erosion, ulceration, cobblestone-like changes and other characteristics, and the therapeutic drugs are aminosalicylic acid preparations, hormones, immunosuppressants, probiotics and so on. Enteroscopy suggests plasma cell infiltration, and it is recommended that the patient go to the hospital in time for a comprehensive analysis by the doctor combined with the results of enteroscopy. Drugs need to be used under the guidance of a doctor.