Inflammation can cause elevated ferritin. On the one hand, inflammation can promote the increase of ferritin synthesis in the body, which leads to the elevation of ferritin. On the other hand, inflammation can present damage to the respiratory system, and the patient can have respiratory symptoms such as coughing, coughing up sputum, and fever, as well as damage to the digestive system, and the patient can have gastrointestinal symptoms such as nausea, vomiting, abdominal pain, and diarrhea. The patient has fever, nausea, vomiting, abdominal pain, and diarrhea, which can be accompanied by a significant loss of body fluids, and the blood in the body’s circulatory system can be concentrated, and elevated ferritin can occur. Anti-inflammatory symptomatic therapy is given in the treatment of inflammatory infections, and with effective anti-inflammatory therapy the body’s ferritin index will return to normal.