Clinically, P. aeruginosa is a bacterium, also known as Pseudomonas aeruginosa and Pseudomonas aeruginosa. P. aeruginosa is very widely distributed in nature and is one of the more common bacteria in the soil, in addition to being present in the skin, respiratory tract and intestines of normal humans. P. aeruginosa is a conditionally pathogenic bacteria, can exist in the air, water, human body, when the immunity is too low or other diseases, such as suffering from burns, metabolic diseases, blood diseases, malignant tumors, etc., easier to infect P. aeruginosa, in serious cases may be life-threatening. Meanwhile, P. aeruginosa is also a major pathogen of nosocomial infections, often causing postoperative wound infections and abscesses, such as purulent otitis media and decubitus ulcers. In addition, P. aeruginosa can be hematogenous and increase the chance of bacteremia and sepsis in the body. And P. aeruginosa is prone to drug resistance and is difficult to treat, so during hospitalization, it is important to ensure the level of disinfection and standardization of treatment in the hospital to avoid causing infection. If necessary, bacterial culture can be used to select appropriate antibiotics for anti-infection treatment under the guidance of doctors, such as piperacillin sodium sulbactam, or ceftazidime and cefoperazone in the third generation of cephalosporins, and also imipenem, gentamicin, moxifloxacin, levofloxacin and other drugs. In the diet, P. aeruginosa mostly refers to the wild fungus P. aeruginosa, which is more toxic. Wild mushroom P. aeruginosa is toxic, and after human consumption, it may cause mild poisoning of the gastrointestinal tract, which may manifest as dizziness, vomiting, abdominal pain and other symptoms, and in severe cases, it may cause liver and kidney damage to the organism. When the patient accidentally consumes wild mushroom P. aeruginosa and the symptoms are more serious, go to the hospital in time to induce vomiting, if necessary, gastric lavage, diarrhea, etc., to expel the poison, and actively treat the symptoms.