High monocytes may be caused by a redistribution of white blood cell percentages due to a decrease in other white blood cells, such as lymphocytes, neutrophils, eosinophils and basophils. If monocytes are high in infants and children, it is a normal physiological phenomenon and no special treatment is needed. In adults, a high monocyte count may indicate the presence of infection in the body. Certain common infectious diseases, such as infective endocarditis, recovery from acute infection, and active tuberculosis, may cause a high monocyte count. One indicator abnormality alone does not necessarily determine the disease and needs to be combined with other clinical symptoms for comprehensive analysis. Patients are advised to seek medical attention as soon as possible to clarify the cause and then treat the symptoms. This condition is commonly seen in the following diseases: 1. Infective endocarditis: routine blood tests can detect increased monocyte counts and significant leftward nuclear shift in white blood cells, endocarditis without clear infection germs, patients with milder symptoms can be treated with penicillin, amoxicillin and gentamicin, patients with more severe symptoms are commonly treated with vancomycin combined with gentamicin and rifampicin, endocarditis with clear infection germs after According to the type of pathogen, patients with mild symptoms choose the appropriate antibacterial drugs for symptomatic treatment, patients with more severe symptoms feasible surgical treatment, commonly used surgical treatment modalities are autologous valve repair, prosthetic valve replacement, postoperative need to pay attention to active anti-infection, regular review; 2, the recovery period of acute infection: because monocytes can engulf the broken neutrophils produced in the pre-infection, the recovery period can be manifested as Patients should pay attention to a light diet, drink more water, eat more fresh vegetables and fruits, ensure balanced nutritional intake, ensure sufficient sleep, exercise in moderation, and improve the body’s immunity; 3, active tuberculosis: monocytes can increase in the acute progressive stage of leukocytes, and leukemia-like blood picture can occur in severe infection, but it is not specific. The diagnosis needs to be confirmed by comprehensive sputum Mycobacterium tuberculosis, tuberculin test, chest X-ray and CT examination, and drug therapy can be used in mild cases. Patients with severe symptoms need bed rest, and those who are not treated conservatively can be treated with tuberculosis surgery combined with radiotherapy and chemotherapy to kill the bacteria. High monocytes may also be associated with monocytic leukemia, lymphoma, etc. Patients need to be further treated with surgery and radiotherapy or chemotherapy as recommended by the doctor.