Hemophobia is a colloquial term for what is actually a type of phobia, which is a mental illness. There are not many true clinical phobias of blood, and certainly the number of atypical ones may be significant. Even if it is a psychiatric disorder, the etiology would be unclear. In fact, hematophobia is also this condition, a cognitive deficit, a deficit that is due to some kind of abnormal stimulation of the serving machine that exceeds the limit of tolerance, leading to some kind of short circuit, the mechanism of which is not quite exact, resulting in a state of syncope and shock due to a very high intolerance to blood. In this case, it is important to reinforce awareness with the patient who is drawing blood, so that he does not have psychological fears and looks things squarely in the face, so that there will not be a serious sense of depression and fear.