Patients with neoconiosis may develop diarrhea, but diarrhea is not necessarily due to neoconiosis. Fever, dry cough, and malaise are the main manifestations of New Coronary Pneumonia. Only a few patients may present with symptoms of nasal congestion, runny nose, sore throat, muscle aches, and diarrhea, and since diarrhea is not clearly specific, it cannot be used as a basis for diagnosis. Patients can check themselves for other concomitant symptoms, travel and business trips to areas with a high incidence of the disease, and a history of contact with people in high-risk areas. Current methods for detecting New Coronary Pneumonia include pharyngeal swab nucleic acid testing, imaging tests such as chest X-ray and CT, and routine blood tests, etc. If the diagnosis is confirmed, isolation and aggressive treatment should be carried out according to the regulations of the relevant authorities. If no diagnosis of neoconjunctivitis is confirmed, the following possible causes of diarrhea are considered: 1. Common diarrhea: diarrhea caused by stimulation of the gastrointestinal tract by eating a spicy, stimulating, greasy, or cold diet, which can be relieved by abdominal warmth, diet adjustment, and adequate rest; 2. Acute diarrhea: the patient has an unclean diet and is infected with bacteria such as E. coli, E. dysenteriae, or rotavirus, norovirus Coxsackie virus, or parasites such as amoeba and ulcerative colitis secondary infection, can cause acute diarrhea, accompanied by abdominal pain, nausea, vomiting, fever, stools with watery stools or bloody stools; 3, chronic diarrhea: the etiology of chronic diarrhea is often complex, generally related to intestinal lesions, phytonadic dysfunction and other factors, also seen in chronic amoebic dysentery, chronic Bacterial dysentery, intestinal tuberculosis and other infectious diseases of the intestine, but also in Crohn’s disease, ulcerative colitis, diverticulitis and other non-infectious diseases, as well as irritable bowel syndrome, small intestine malabsorption and other gastrointestinal diseases related. Systemic diseases such as hyperthyroidism, systemic lupus erythematosus, and diabetes mellitus may also cause diarrhea, and the exact etiology needs further examination to be clarified. After ruling out neoconiosis, patients can detect the cause of diarrhea by various means such as blood routine, blood biochemistry, stool routine, stool culture or occult blood test, and actively treat it under the guidance of doctors. At the same time, the defense of neoconiosis should be done, including wearing a mask and active disinfection.