Low globulin may be caused by diseases of the liver, use of immunosuppressive drugs, and decreased immunity. Routine blood tests, chest X-ray, and stool tests are needed to determine the type of infectious agent and to provide appropriate anti-infective treatment. Routine blood test mainly detects the number of tangible cells in the blood and changes in their shape to diagnose the presence of leukemia, anemia and other conditions; chest X-ray mainly examines the lungs, airways and other parts of the lungs for inflammation and examines the heart; routine stool test examines the color of feces, the nature of feces, and examines for the presence of parasites and infection with rotavirus. Patients with low globulin are advised not to drink alcohol as much as possible, and can eat more food with more protein in moderation, exercise properly to enhance the immunity of human body functions, and ensure enough sleep. When the patient is in discomfort, he should go to the hospital in time and under the advice of the doctor to do the appropriate examination and carry out the appropriate treatment.