Immune thrombocytopenia is not low immunity, but is mainly caused by immune dysfunction. When the body’s immune function is disordered, the autoantibodies will attack and destroy the platelets by mistake, thus leading to thrombocytopenia. The immune system disorder makes the immune system unable to play the function of self-defense truly and effectively. Low immunity usually means that the body secretes fewer immune cells or immune factors, and the system’s ability to defend against external infections is reduced, which is mainly manifested by repeated infections. It is recommended that patients go to a professional hospital as soon as possible, under the guidance of doctors to clarify the treatment plan, early treatment, strictly in accordance with the doctor’s instructions to choose the appropriate treatment plan, to prevent the development of the disease, affecting the later treatment effect.