Having immunohistochemistry does not necessarily mean that cancer is highly suspected. Immunohistochemistry is a test that uses a combination of antigens and antibodies to detect the cell type of an abnormally proliferating tissue, or mass, to determine whether it is normal cells or tumor cells. It is not a diagnostic indicator of the disease itself. The results of the test can be used as an aid in diagnosing the disease, and the doctor can make a diagnosis based on the immunohistochemistry results and other manifestations of the disease. If there is any abnormality in your body, you should consult a doctor immediately and undergo the appropriate examination according to the doctor’s instruction. You do not need to worry too much and be anxious, and you should carry out the treatment according to the examination results in order to strive for a speedy recovery.