Autoimmune diseases are controlled by genetic and environmental factors. Genetic and environmental factors impact the overall functioning of the immune system. Until today, autoimmune diseases are considered rare and most people do not understand why and how people develop these diseases. There are several types of autoimmune diseases, there are approximately 80 distinct autoimmune diseases. Autoimmune diseases can target a specific part of the body; Autoimmune diseases can affect the body's vital organs, hormones, skin, nerves, circulatory system and also the gastrointestinal system. All of these are considered essential parts of the body that we need to function and survive. Idiopathic thrombocytopenic purpura (ITP) and systemic lupus are two types of autoimmune diseases that affect the human body. Idiopathic thrombocytopenic purpura (ITP) is a bleeding disorder that destroys platelets in the immune system. According to the ITP article A Historical Perspective, platelets play an important role in the natural blood clotting process. “A clinical syndrome of hemorrhage and purpura consistent with a diagnosis of immune thrombocytopenia (ITP) was described by Werlhof long before platelets were identified as the cellular component of blood playing an essential role in primary hemostasis” ( Stasi, 2011). Generally speaking, the absence of platelets will have an impact on the hemostasis process, without platelets the blood will not be able to clot normally. The risk of blood not clotting leads to excessive bleeding which can be life-threatening and fatal. " ITP currently stands for Immune Thrombocytopenia, a name that more appropriately reflects low platelet counts rather than Purpura as the primary...... middle of article ...... and Idiopathic Thrombocytopenic Purpura have some similarities between them. The thing they have most in common is that there is uncertainty as to how they are both caused. When researching these two autoimmune diseases, I was drawn to them. them in an attempt to understand exactly how a person is able to develop these illnesses, but there is no reason or research that supports how they are caused because the cause remains unknown. Sometimes that is how life works. , the truth is not always written or spoken out loud, it is sought For almost three years now, I have been searching for the truth about why my sister suffers from systemic lupus erythmos, or lupus nephritis. inspired him to write and research autoimmune diseases. Although there is no cure and an unknown cause, I hope that one day there will be an answer..