Anemia is a common disease in hematology, and it is easy to be taken seriously. However, in recent years in the clinic found that a “polycythemia” disease – “true erythrocytosis” has gradually increased the trend, this pathogen for the highland hypoxic areas of the disease. True erythropoiesis, as the name implies, is a disease of increased red blood cells, the plain pathogenesis is unknown, often clinically insidious onset, no obvious clinical symptoms, not easy to pay attention to, at the same time, because the body of red blood cells increased, hematocrit increased, the performance of the “red face”, often mistaken for a sign of health It is often mistaken as a sign of good health. However, although its clinical manifestation is not obvious, the danger is not to be underestimated. True erythropoietic disorder is a chronic proliferative blood disease, due to the proliferation of the bone marrow red blood cell system, resulting in higher than normal hematocrit, more common in men. The most important danger is that it is prone to thrombotic diseases or blood vessel rupture and bleeding, such as stroke, arterial and venous thrombosis, etc. The disease is treated with a combination of Chinese and Western medicine, symptomatic treatment with bloodletting therapy, Western medicine can use chemotherapy, combined Chinese and Western medicine treatment has obvious efficacy. True erythrocytosis is diagnosed as “blood stasis” or “Y obstruction” in Chinese medicine, and is clinically classified into four types: damp-heat blood stasis, qi stagnation blood stasis, yin deficiency blood stasis and blood stagnation and phlegm coagulation, and is treated according to the evidence. Therefore, when a person’s face is too red and the hematocrit is found to be more than normal in physical examination, it should be taken seriously. So that early detection and early treatment.