In antibiotic-associated enteritis, the main causative organisms are Staphylococcus aureus, Pseudomembranous enteritis Pseudomonas aeruginosa, Fungal enteritis, and Cytotoxic immobilizers, to name a few. In general, antibiotic-associated enteritis is mainly due to the use of large doses of broad-spectrum antibiotics for too long, and due to some wasting disease leading to the patient’s body immunity, intestinal flora imbalance. Normally bacteria with no pathogenicity grow and multiply excessively, and some bacteria that are normally present are fewer, finally leading to the disease. Typically, Staphylococcus aureus is the most common type, while pseudomembranous enteritis is also the second most common. Most patients will notice symptoms of diarrhea, while there may be some abdominal pain, or a clinical picture of ineffective antibiotic treatment, or a gradual worsening of symptoms.