Tyrosine phosphatase antibody is a type of pancreatic islet autoantibody, and tyrosine phosphatase antibody testing is beneficial for diagnosis of diseases, evaluation of treatment effects, and so on. Tyrosine phosphatase antibody acts on the insulin receptor and can affect the function of insulin and insulin receptor, which does not exist in normal people. The detection of tyrosine phosphatase antibody can be used for early diagnosis of type 1 diabetes, which is beneficial for diagnostic typing of diabetic patients, as well as for treatment evaluation of type 2 diabetes and obesity. When islet transplantation is performed it is also possible to test for tyrosine phosphatase antibodies to evaluate outcomes, among other things. When the tyrosine phosphatase antibody test is positive, you need to go to a regular hospital and follow the doctor’s instructions for treatment.