Tirelizumab, or Tirelizumab Injection, side effects such as fever, hypothyroidism, weight gain, pruritus, decreased white blood cell count, upper respiratory tract infection, impaired liver function, and rash can occur when using Tirelizumab Injection. When using tirilizumab injection, common systemic side effects include fever, cough, malaise, itching, rash, anemia, and weight gain, as well as localized disorders such as inflammation of the lungs, upper respiratory tract infections, and hypothyroidism. In addition, side effects such as elevated blood bilirubin and decreased white blood cells may be found when laboratory tests are performed. In the use of drug therapy, should be standardized under the guidance of a professional physician, not blind use, if there is an adverse reaction, should promptly inform the professional physician, stop using the drug or other drug therapy, to avoid serious effects on the body.