Lymphocyte ratio is found to be high in routine blood test, if there is no other discomfort, no special treatment is needed; if it is viral infection, antiviral drugs can be used; if it is lymphoblastic leukemia, radiotherapy and other treatments can be used. 1. No other discomforts: no special treatment is needed, rest and nutrient intake are needed, and follow up observation is needed. 2. Viral infection: If it is caused by viral infection, anti-viral drugs can be used to treat it. In addition, a high lymphocyte ratio may also occur during the recovery period of acute infectious diseases. 3. Lymphoblastic leukemia, lymphoma: radiotherapy or hematopoietic stem cell transplantation can be used. If your lymphocyte ratio is high, you should consult a doctor in time to find out the cause, and if necessary, take a peripheral blood smear or flow cytology to clarify the cause of the disease. After finding the cause, treatment should be carried out under the guidance of the doctor to avoid delaying the condition.